A-
| Polls analyzed | 454 |
| Races called correctly | 79% |
| Most recent cycle | 2020 |
| Affiliated with professional polling organization (NCPP/AAPOR/Roper) | No |
How accurate are the polls from Public Policy Polling?
Polls conducted within 21 days of an election (based on the poll’s median date) are used to determine the pollster’s grade.
2020
Key
A = Adults
RV = Registered voters
V = Voters
LV = Likely voters
| Dates | Sample | Race | Methodology | Poll margin | Election margin | Difference |
|---|---|---|---|---|---|---|
| Nov 1-2 | 871V | Senate (IA) General election | IVR/Text | Poll Greenfield (D) +1.0 | Actual Ernst (R) +6.6 | Difference 7.6 |
| Nov 1-2 | 871V | President (IA) General election | IVR/Text | Poll Biden (D) +1.0 | Actual Trump (R) +8.2 | Difference 9.2 |
| Oct 29-30 | 770V | Senate (MN) General election | IVR/Text | Poll Smith (D) +9.0 | Actual Smith (D) +5.2 | Difference 3.8 |
| Oct 29-30 | 745V | Senate (MI) General election | IVR/Text | Poll Peters (D) +10.0 | Actual Peters (D) +1.7 | Difference 8.3 |
| Oct 29-30 | 745V | President (MI) General election | IVR/Text | Poll Biden (D) +10.0 | Actual Biden (D) +2.8 | Difference 7.2 |
| Oct 29-30 | 770V | President (MN) General election | IVR/Text | Poll Biden (D) +11.0 | Actual Biden (D) +7.1 | Difference 3.9 |
| Oct 28-29 | 750V | House (NC-9) General election | IVR/Text | Poll Bishop (R) +2.0 | Actual Bishop (R) +11.2 | Difference 9.2 |
| Oct 28-29 | 775V | President (TX) General election | IVR/Text | Poll Biden (D) +2.0 | Actual Trump (R) +5.6 | Difference 7.6 |
| Oct 28-29 | 941V | President (FL) General election | IVR/Text | Poll Biden (D) +7.0 | Actual Trump (R) +3.4 | Difference 10.4 |
| Oct 28-29 | 1,012V | President (PA) General election | IVR/Text | Poll Biden (D) +7.0 | Actual Biden (D) +1.2 | Difference 5.8 |
| Oct 27-28 | 661V | Senate (GA) General election | IVR/Text | Poll Ossoff (D) +3.0 | Actual Perdue (R) +1.8 | Difference 4.8 |
| Oct 27-28 | 661V | President (GA) General election | IVR/Text | Poll Biden (D) +2.0 | Actual Biden (D) +0.2 | Difference 1.8 |
| Oct 27-28 | 661V | Senate (GA) Special jungle primary | IVR/Text | Poll Warnock (D) +19.0 | Actual Warnock (D) +7.0 | Difference 12.0 |
| Oct 26-27 | 886V | Senate (MT) General election | IVR/Text | Poll Bullock (D) +1.0 | Actual Daines (R) +10.0 | Difference 11.0 |
| Oct 26-27 | 937V | President (NC) General election | IVR/Text | Poll Biden (D) +4.0 | Actual Trump (R) +1.3 | Difference 5.3 |
| Oct 26-27 | 886V | President (MT) General election | IVR/Text | Poll Trump (R) +2.0 | Actual Trump (R) +16.4 | Difference 14.4 |
| Oct 26-27 | 582V | House (AZ-6) General election | IVR/Text | Poll Tipirneni (D) +4.0 | Actual Schweikert (R) +4.3 | Difference 8.3 |
| Oct 26-27 | 937V | Senate (NC) General election | IVR/Text | Poll Cunningham (D) +3.0 | Actual Tillis (R) +1.7 | Difference 4.7 |
| Oct 21-22 | 890V | President (PA) General election | IVR/Text | Poll Biden (D) +5.0 | Actual Biden (D) +1.2 | Difference 3.8 |
| Oct 21-22 | 804V | Senate (MI) General election | IVR/Text | Poll Peters (D) +9.0 | Actual Peters (D) +1.7 | Difference 7.3 |
| Oct 21-22 | 910V | House (VA-5) General election | IVR/Text | Poll Webb (D) +3.0 | Actual Good (R) +5.1 | Difference 8.1 |
| Oct 21-22 | 804V | President (MI) General election | IVR/Text | Poll Biden (D) +7.0 | Actual Biden (D) +2.8 | Difference 4.2 |
| Oct 19-20 | 897V | Senate (KS) General election | IVR/Text | Poll Even | Actual Marshall (R) +11.4 | Difference 11.4 |
| Oct 19-20 | 897V | President (KS) General election | IVR/Text | Poll Trump (R) +12.0 | Actual Trump (R) +14.7 | Difference 2.7 |
| Oct 19-20 | 800V | President (AK) General election | IVR/Text | Poll Trump (R) +5.0 | Actual Trump (R) +10.1 | Difference 5.1 |
| Oct 19-20 | 800V | Senate (AK) General election | IVR/Text | Poll Sullivan (R) +3.0 | Actual Sullivan (R) +12.7 | Difference 9.7 |
| Oct 14-15 | 610LV | Governor (WA) General election | IVR/Text | Poll Inslee (D) +16.0 | Actual Inslee (D) +13.4 | Difference 2.6 |
| Oct 14-15 | 818RV | House (OH-12) General election | IVR/Text | Poll Balderson (R) +4.0 | Actual Balderson (R) +13.5 | Difference 9.5 |
| Oct 14-15 | 712V | Senate (TX) General election | IVR/Text | Poll Cornyn (R) +3.0 | Actual Cornyn (R) +9.6 | Difference 6.6 |
| Oct 14-15 | 610LV | President (WA) General election | IVR/Text | Poll Biden (D) +23.0 | Actual Biden (D) +19.2 | Difference 3.8 |
| Oct 13-14 | 789RV | House (NY-24) General election | IVR/Text | Poll Balter (D) +2.0 | Actual Katko (R) +10.2 | Difference 12.2 |
| Feb 24-25 | 1,045LV | President (TX) Democratic primary | IVR/Text | Poll Even | Actual Biden (D) +4.7 | Difference 4.7 |
| Feb 24-25 | 1,045LV | President (TX) Democratic primary | IVR/Text | Poll Biden (D) +6.0 | Actual Biden (D) +4.7 | Difference 1.3 |
| Feb 23-24 | 866LV | President (SC) Democratic primary | IVR/Text | Poll Biden (D) +15.0 | Actual Biden (D) +28.9 | Difference 13.9 |
| Feb 23-24 | 852LV | President (NC) Democratic primary | IVR/Text | Poll Biden (D) +3.0 | Actual Biden (D) +18.7 | Difference 15.7 |
2018
| Dates | Sample | Race | Methodology | Poll margin | Election margin | Difference |
|---|---|---|---|---|---|---|
| Oct 19-20 | 698V | Governor (KS) General election | IVR | Poll Even | Actual Kelly (D) +5.1 | Difference 5.1 |
| Oct 15-16 | 648V | Senate (NV) General election | IVR | Poll Rosen (D) +2.0 | Actual Rosen (D) +5.0 | Difference 3.0 |
| Oct 15-16 | 681V | House (GA-3) General election | IVR | Poll Ferguson (R) +30.0 | Actual Ferguson (R) +31.1 | Difference 1.1 |
| Jul 27-29 | 617V | House (OH-12) Special election | IVR | Poll Balderson (R) +4.0 | Actual Balderson (R) +0.8 | Difference 3.2 |
2016
| Dates | Sample | Race | Methodology | Poll margin | Election margin | Difference |
|---|---|---|---|---|---|---|
| Nov 3-4 | 704LV | President (CO) General election | IVR/Online | Poll Clinton (D) +5.0 | Actual Clinton (D) +4.9 | Difference 0.1 |
| Nov 3-4 | 1,238LV | President (VA) General election | IVR/Online | Poll Clinton (D) +5.0 | Actual Clinton (D) +5.3 | Difference 0.3 |
| Nov 3-4 | 1,238LV | President (VA) General election | IVR/Online | Poll Clinton (D) +6.0 | Actual Clinton (D) +5.3 | Difference 0.7 |
| Nov 3-4 | 957LV | President (MI) General election | IVR/Online | Poll Clinton (D) +6.0 | Actual Trump (R) +0.2 | Difference 6.2 |
| Nov 3-4 | 957LV | President (MI) General election | IVR/Online | Poll Clinton (D) +5.0 | Actual Trump (R) +0.2 | Difference 5.2 |
| Nov 3-4 | 704LV | Senate (CO) General election | IVR/Online | Poll Bennet (D) +10.0 | Actual Bennet (D) +5.7 | Difference 4.3 |
| Nov 1-2 | 871LV | Governor (MO) General election | IVR/Online | Poll Koster (D) +3.0 | Actual Greitens (R) +5.6 | Difference 8.6 |
| Oct 31-Nov 1 | 891LV | President (WI) General election | IVR/Online | Poll Clinton (D) +7.0 | Actual Trump (R) +0.8 | Difference 7.8 |
| Oct 31-Nov 1 | 1,050LV | President (PA) General election | IVR/Online | Poll Clinton (D) +4.0 | Actual Trump (R) +0.7 | Difference 4.7 |
| Oct 31-Nov 1 | 688LV | President (NV) General election | IVR/Online | Poll Clinton (D) +3.0 | Actual Clinton (D) +2.4 | Difference 0.6 |
| Oct 31-Nov 1 | 781LV | President (NH) General election | IVR/Online | Poll Clinton (D) +5.0 | Actual Clinton (D) +0.4 | Difference 4.6 |
| Oct 31-Nov 1 | 1,169LV | President (NC) General election | IVR/Online | Poll Clinton (D) +2.0 | Actual Trump (R) +3.7 | Difference 5.7 |
| Oct 31-Nov 1 | 1,083LV | President (MO) General election | IVR/Online | Poll Trump (R) +13.0 | Actual Trump (R) +18.6 | Difference 5.6 |
| Oct 31-Nov 1 | 1,083LV | President (MO) General election | IVR/Online | Poll Trump (R) +11.0 | Actual Trump (R) +18.6 | Difference 7.6 |
| Oct 31-Nov 1 | 781LV | Senate (NH) General election | IVR/Online | Poll Hassan (D) +3.0 | Actual Hassan (D) +0.1 | Difference 2.9 |
| Oct 31-Nov 1 | 891LV | Senate (WI) General election | IVR/Online | Poll Feingold (D) +5.0 | Actual Johnson (R) +3.4 | Difference 8.4 |
| Oct 31-Nov 1 | 1,083LV | Senate (MO) General election | IVR/Online | Poll Blunt (R) +2.0 | Actual Blunt (R) +2.8 | Difference 0.8 |
| Oct 31-Nov 1 | 688LV | Senate (NV) General election | IVR/Online | Poll Cortez Masto (D) +3.0 | Actual Cortez Masto (D) +2.4 | Difference 0.6 |
| Oct 31-Nov 1 | 1,169LV | Senate (NC) General election | IVR/Online | Poll Burr (R) +3.0 | Actual Burr (R) +5.7 | Difference 2.7 |
| Oct 31-Nov 1 | 781LV | Governor (NH) General election | IVR/Online | Poll Van Ostern (D) +3.0 | Actual Sununu (R) +2.3 | Difference 5.3 |
| Oct 31-Nov 1 | 1,050LV | Senate (PA) General election | IVR/Online | Poll McGinty (D) +2.0 | Actual Toomey (R) +1.4 | Difference 3.4 |
| Oct 25-26 | 742LV | President (FL) General election | IVR/Online | Poll Clinton (D) +4.0 | Actual Trump (R) +1.2 | Difference 5.2 |
| Oct 25-26 | 742LV | Senate (FL) General election | IVR/Online | Poll Even | Actual Rubio (R) +7.7 | Difference 7.7 |
| Oct 23-24 | 1,218V | House (NY-19) General election | IVR | Poll Teachout (D) +3.0 | Actual Faso (R) +8.1 | Difference 11.1 |
| Oct 21-22 | 875LV | President (NC) General election | IVR/Online | Poll Clinton (D) +3.0 | Actual Trump (R) +3.7 | Difference 6.7 |
| Oct 21-22 | 875LV | Senate (NC) General election | IVR/Online | Poll Burr (R) +1.0 | Actual Burr (R) +5.7 | Difference 4.7 |
| Oct 21-22 | 875LV | Governor (NC) General election | IVR/Online | Poll Cooper (D) +2.0 | Actual Cooper (D) +0.2 | Difference 1.8 |
| Oct 21-22 | 982RV | House (NJ-7) General election | IVR/Online | Poll Even | Actual Lance (R) +11.0 | Difference 11.0 |
| Oct 20-21 | 990LV | President (National) General election | IVR/Online | Poll Clinton (D) +6.0 | Actual Clinton (D) +2.1 | Difference 3.9 |
| Oct 18-19 | 804LV | Senate (WI) General election | IVR | Poll Feingold (D) +6.0 | Actual Johnson (R) +3.4 | Difference 9.4 |
| Oct 18-19 | 804LV | President (WI) General election | IVR | Poll Clinton (D) +12.0 | Actual Trump (R) +0.8 | Difference 12.8 |
| Apr 29-May 1 | 637LV | President (WV) Democratic primary | IVR/Online | Poll Sanders (D) +8.0 | Actual Sanders (D) +15.6 | Difference 7.6 |
| Apr 22-24 | 668LV | President (RI) Democratic primary | IVR/Online | Poll Sanders (D) +4.0 | Actual Sanders (D) +11.6 | Difference 7.6 |
| Apr 22-24 | 826LV | President (PA) Republican primary | IVR/Online | Poll Trump (R) +26.0 | Actual Trump (R) +34.8 | Difference 8.8 |
| Apr 22-24 | 728LV | President (PA) Democratic primary | IVR/Online | Poll Clinton (D) +10.0 | Actual Clinton (D) +11.9 | Difference 1.9 |
| Apr 22-24 | 512LV | President (CT) Republican primary | IVR/Online | Poll Trump (R) +34.0 | Actual Trump (R) +29.5 | Difference 4.5 |
| Apr 22-24 | 709LV | President (CT) Democratic primary | IVR/Online | Poll Clinton (D) +2.0 | Actual Clinton (D) +5.4 | Difference 3.4 |
| Apr 22-24 | 511LV | President (RI) Republican primary | IVR/Online | Poll Trump (R) +38.0 | Actual Trump (R) +39.4 | Difference 1.4 |
| Apr 15-17 | 310LV | President (MD) Republican primary | IVR/Online | Poll Trump (R) +14.0 | Actual Trump (R) +30.9 | Difference 16.9 |
| Apr 15-17 | 492LV | President (MD) Democratic primary | IVR/Online | Poll Clinton (D) +25.0 | Actual Clinton (D) +28.7 | Difference 3.7 |
| Apr 7-10 | 663LV | President (NY) Democratic primary | IVR/Online | Poll Clinton (D) +11.0 | Actual Clinton (D) +16.1 | Difference 5.1 |
| Apr 7-10 | 483LV | President (NY) Republican primary | IVR/Online | Poll Trump (R) +26.0 | Actual Trump (R) +35.1 | Difference 9.1 |
| Mar 28-29 | 720LV | President (WI) Democratic primary | IVR/Online | Poll Sanders (D) +6.0 | Actual Sanders (D) +13.5 | Difference 7.5 |
| Mar 28-29 | 768LV | President (WI) Republican primary | IVR/Online | Poll Cruz (R) +1.0 | Actual Cruz (R) +13.2 | Difference 12.2 |
| Mar 11-13 | 749LV | President (NC) Republican primary | IVR/Online | Poll Trump (R) +11.0 | Actual Trump (R) +3.5 | Difference 7.5 |
| Mar 11-13 | 747LV | President (NC) Democratic primary | IVR/Online | Poll Clinton (D) +19.0 | Actual Clinton (D) +13.6 | Difference 5.4 |
| Mar 11-12 | 839LV | President (MO) Democratic primary | IVR/Online | Poll Sanders (D) +1.0 | Actual Clinton (D) +0.3 | Difference 1.3 |
| Mar 11-12 | 597V | President (IL) Democratic primary | IVR/Online | Poll Clinton (D) +3.0 | Actual Clinton (D) +1.9 | Difference 1.1 |
| Mar 11-12 | 627LV | President (FL) Democratic primary | IVR/Online | Poll Clinton (D) +25.0 | Actual Clinton (D) +31.2 | Difference 6.2 |
| Mar 11-12 | 502LV | President (OH) Democratic primary | IVR/Online | Poll Clinton (D) +5.0 | Actual Clinton (D) +13.0 | Difference 8.0 |
| Mar 7-8 | 904LV | President (FL) Republican primary | IVR/Online | Poll Trump (R) +10.0 | Actual Trump (R) +18.7 | Difference 8.7 |
| Mar 4-6 | 638LV | President (OH) Republican primary | IVR/Online | Poll Trump (R) +3.0 | Actual Kasich (R) +11.1 | Difference 14.1 |
| Mar 4-6 | 508LV | President (OH) Democratic primary | IVR/Online | Poll Clinton (D) +21.0 | Actual Clinton (D) +13.0 | Difference 8.0 |
| Feb 24-25 | 464LV | President (FL) Republican primary | IVR/Online | Poll Trump (R) +20.0 | Actual Trump (R) +18.7 | Difference 1.3 |
| Feb 24-25 | 388LV | President (FL) Democratic primary | IVR/Online | Poll Clinton (D) +25.0 | Actual Clinton (D) +31.2 | Difference 6.2 |
| Feb 14-16 | 500LV | President (GA) Democratic primary | IVR/Online | Poll Clinton (D) +34.0 | Actual Clinton (D) +43.1 | Difference 9.1 |
| Feb 14-16 | 525LV | President (AR) Democratic primary | IVR/Online | Poll Clinton (D) +25.0 | Actual Clinton (D) +36.1 | Difference 11.1 |
| Feb 14-16 | 500LV | President (AL) Democratic primary | IVR/Online | Poll Clinton (D) +28.0 | Actual Clinton (D) +58.7 | Difference 30.7 |
| Feb 14-16 | 500LV | President (TN) Democratic primary | IVR/Online | Poll Clinton (D) +26.0 | Actual Clinton (D) +33.6 | Difference 7.6 |
| Feb 14-16 | 548LV | President (LA) Democratic primary | IVR/Online | Poll Clinton (D) +31.0 | Actual Clinton (D) +47.9 | Difference 16.9 |
| Feb 14-16 | 500LV | President (VA) Democratic primary | IVR/Online | Poll Clinton (D) +22.0 | Actual Clinton (D) +29.1 | Difference 7.1 |
| Feb 14-16 | 693LV | President (VT) Democratic primary | IVR/Online | Poll Sanders (D) +76.0 | Actual Sanders (D) +72.4 | Difference 3.6 |
| Feb 14-16 | 514LV | President (TX) Democratic primary | IVR/Online | Poll Clinton (D) +23.0 | Actual Clinton (D) +32.0 | Difference 9.0 |
| Feb 14-16 | 542LV | President (OK) Democratic primary | IVR/Online | Poll Clinton (D) +2.0 | Actual Sanders (D) +10.4 | Difference 12.4 |
| Feb 14-16 | 538LV | President (MA) Democratic primary | IVR/Online | Poll Sanders (D) +7.0 | Actual Clinton (D) +1.4 | Difference 8.4 |
| Feb 14-15 | 897LV | President (SC) Republican primary | IVR/Online | Poll Trump (R) +17.0 | Actual Trump (R) +10.0 | Difference 7.0 |
| Feb 14-15 | 525LV | President (SC) Democratic primary | IVR/Online | Poll Clinton (D) +21.0 | Actual Clinton (D) +47.4 | Difference 26.4 |
| Jan 26-27 | 780LV | President (IA) Republican primary | IVR/Online | Poll Trump (R) +8.0 | Actual Cruz (R) +3.3 | Difference 11.3 |
| Jan 26-27 | 851LV | President (IA) Democratic primary | IVR/Online | Poll Clinton (D) +8.0 | Actual Clinton (D) +0.3 | Difference 7.7 |
2014
| Dates | Sample | Race | Methodology | Poll margin | Election margin | Difference |
|---|---|---|---|---|---|---|
| Nov 1-3 | 975LV | Governor (GA) General election | IVR/Online | Poll Deal (R) +4.0 | Actual Deal (R) +7.9 | Difference 3.9 |
| Nov 1-3 | 963LV | Governor (KS) General election | IVR/Online | Poll Davis (D) +1.0 | Actual Brownback (R) +3.7 | Difference 4.7 |
| Nov 1-3 | 963LV | Governor (KS) General election | IVR/Online | Poll Davis (D) +2.0 | Actual Brownback (R) +3.7 | Difference 5.7 |
| Nov 1-3 | 1,265LV | Governor (IA) General election | IVR/Online | Poll Branstad (R) +11.0 | Actual Branstad (R) +21.7 | Difference 10.7 |
| Nov 1-3 | 1,265LV | Senate (IA) General election | IVR/Online | Poll Ernst (R) +3.0 | Actual Ernst (R) +8.3 | Difference 5.3 |
| Nov 1-3 | 963LV | Senate (KS) General election | IVR/Online | Poll Orman (I) +1.0 | Actual Roberts (R) +10.6 | Difference 11.6 |
| Nov 1-3 | 963LV | Senate (KS) General election | IVR/Online | Poll Orman (I) +2.0 | Actual Roberts (R) +10.6 | Difference 12.6 |
| Nov 1-3 | 975LV | Senate (GA) General election | IVR/Online | Poll Even | Actual Perdue (R) +7.7 | Difference 7.7 |
| Nov 1-3 | 975LV | Senate (GA) General election | IVR/Online | Poll Perdue (R) +1.0 | Actual Perdue (R) +7.7 | Difference 6.7 |
| Nov 1-3 | 1,333LV | Senate (NC) General election | IVR/Online | Poll Hagan (D) +2.0 | Actual Tillis (R) +1.6 | Difference 3.6 |
| Nov 1-3 | 1,690LV | Senate (NH) General election | IVR/Online | Poll Shaheen (D) +2.0 | Actual Shaheen (D) +3.2 | Difference 1.2 |
| Nov 1-3 | 1,690LV | Governor (NH) General election | IVR/Online | Poll Hassan (D) +5.0 | Actual Hassan (D) +4.9 | Difference 0.1 |
| Nov 1-2 | 914LV | Senate (MI) General election | IVR/Online | Poll Peters (D) +13.0 | Actual Peters (D) +13.3 | Difference 0.3 |
| Nov 1-2 | 1,052LV | Governor (AK) General election | IVR/Online | Poll Walker (I) +1.0 | Actual Walker (I) +2.2 | Difference 1.2 |
| Nov 1-2 | 739LV | Governor (CO) General election | IVR/Online | Poll Beauprez (R) +1.0 | Actual Hickenlooper (D) +3.3 | Difference 4.3 |
| Nov 1-2 | 739LV | Governor (CO) General election | IVR/Online | Poll Even | Actual Hickenlooper (D) +3.3 | Difference 3.3 |
| Nov 1-2 | 739LV | Senate (CO) General election | IVR/Online | Poll Gardner (R) +3.0 | Actual Gardner (R) +1.9 | Difference 1.1 |
| Nov 1-2 | 914LV | Governor (MI) General election | IVR/Online | Poll Even | Actual Snyder (R) +4.1 | Difference 4.1 |
| Nov 1-2 | 914LV | Governor (MI) General election | IVR/Online | Poll Snyder (R) +1.0 | Actual Snyder (R) +4.1 | Difference 3.1 |
| Nov 1-2 | 1,064LV | Governor (IL) General election | IVR/Online | Poll Even | Actual Rauner (R) +3.9 | Difference 3.9 |
| Nov 1-2 | 1,064LV | Governor (IL) General election | IVR/Online | Poll Quinn (D) +2.0 | Actual Rauner (R) +3.9 | Difference 5.9 |
| Nov 1-2 | 1,198LV | Governor (FL) General election | IVR/Online | Poll Even | Actual Scott (R) +1.1 | Difference 1.1 |
| Nov 1-2 | 1,198LV | Governor (FL) General election | IVR/Online | Poll Crist (D) +1.0 | Actual Scott (R) +1.1 | Difference 2.1 |
| Nov 1-2 | 1,052LV | Senate (AK) General election | IVR/Online | Poll Sullivan (R) +1.0 | Actual Sullivan (R) +2.1 | Difference 1.1 |
| Nov 1-2 | 1,052LV | House (AK-1) General election | IVR/Online | Poll Young (R) +6.0 | Actual Young (R) +10.0 | Difference 4.0 |
| Nov 1-2 | 1,064LV | Senate (IL) General election | IVR/Online | Poll Durbin (D) +10.0 | Actual Durbin (D) +10.9 | Difference 0.9 |
| Nov 1-2 | 1,064LV | Senate (IL) General election | IVR/Online | Poll Durbin (D) +8.0 | Actual Durbin (D) +10.9 | Difference 2.9 |
| Oct 30-Nov 1 | 887LV | Governor (MA) General election | IVR/Online | Poll Baker (R) +4.0 | Actual Baker (R) +1.9 | Difference 2.1 |
| Oct 30-Nov 1 | 1,092LV | Governor (AR) General election | IVR/Online | Poll Hutchinson (R) +9.0 | Actual Hutchinson (R) +13.9 | Difference 4.9 |
| Oct 30-Nov 1 | 1,092LV | Governor (AR) General election | IVR/Online | Poll Hutchinson (R) +10.0 | Actual Hutchinson (R) +13.9 | Difference 3.9 |
| Oct 30-Nov 1 | 931LV | Governor (CT) General election | IVR/Online | Poll Malloy (D) +3.0 | Actual Malloy (D) +2.6 | Difference 0.4 |
| Oct 30-Nov 1 | 1,001LV | Governor (ID) General election | IVR/Online | Poll Otter (R) +12.0 | Actual Otter (R) +15.0 | Difference 3.0 |
| Oct 30-Nov 1 | 1,092LV | Senate (AR) General election | IVR/Online | Poll Cotton (R) +8.0 | Actual Cotton (R) +17.1 | Difference 9.1 |
| Oct 30-Nov 1 | 1,092LV | Senate (AR) General election | IVR/Online | Poll Cotton (R) +6.0 | Actual Cotton (R) +17.1 | Difference 11.1 |
| Oct 30-Nov 1 | 887LV | Senate (MA) General election | IVR/Online | Poll Markey (D) +14.0 | Actual Markey (D) +23.9 | Difference 9.9 |
| Oct 30-Nov 1 | 1,003LV | Senate (LA) Jungle primary | IVR/Online | Poll Landrieu (D) +8.0 | Actual Landrieu (D) +1.1 | Difference 6.9 |
| Oct 30-Nov 1 | 1,003LV | Senate (LA) Jungle primary | IVR/Online | Poll Cassidy (R) +1.0 | Actual Landrieu (D) +1.1 | Difference 2.1 |
| Oct 30-Nov 1 | 1,503LV | Senate (KY) General election | IVR/Online | Poll McConnell (R) +9.0 | Actual McConnell (R) +15.5 | Difference 6.5 |
| Oct 30-Nov 1 | 1,503LV | Senate (KY) General election | IVR/Online | Poll McConnell (R) +8.0 | Actual McConnell (R) +15.5 | Difference 7.5 |
| Oct 30-Nov 1 | 887LV | Governor (MA) General election | IVR/Online | Poll Baker (R) +1.0 | Actual Baker (R) +1.9 | Difference 0.9 |
| Oct 30-31 | 679LV | Senate (NH) General election | IVR | Poll Shaheen (D) +2.0 | Actual Shaheen (D) +3.2 | Difference 1.2 |
| Oct 30-31 | 752LV | Governor (KS) General election | IVR | Poll Davis (D) +4.0 | Actual Brownback (R) +3.7 | Difference 7.7 |
| Oct 31 | 533LV | Senate (GA) General election | IVR | Poll Even | Actual Perdue (R) +7.7 | Difference 7.7 |
| Oct 31 | 617LV | Senate (IA) General election | IVR | Poll Ernst (R) +1.0 | Actual Ernst (R) +8.3 | Difference 7.3 |
| Oct 30-31 | 752LV | Senate (KS) General election | IVR | Poll Roberts (R) +1.0 | Actual Roberts (R) +10.6 | Difference 9.6 |
| Oct 31 | 738LV | Senate (NC) General election | IVR/Online | Poll Hagan (D) +1.0 | Actual Tillis (R) +1.6 | Difference 2.6 |
| Oct 28-30 | 1,814LV | Governor (WI) General election | IVR/Online | Poll Walker (R) +1.0 | Actual Walker (R) +5.7 | Difference 4.7 |
| Oct 29-30 | 937LV | Senate (VA) General election | IVR | Poll Warner (D) +9.0 | Actual Warner (D) +0.8 | Difference 8.2 |
| Oct 28-29 | 573LV | Governor (CO) General election | IVR | Poll Even | Actual Hickenlooper (D) +3.3 | Difference 3.3 |
| Oct 28-29 | 573LV | Senate (CO) General election | IVR | Poll Even | Actual Gardner (R) +1.9 | Difference 1.9 |
| Oct 28-29 | 657LV | Senate (NC) General election | IVR | Poll Hagan (D) +1.0 | Actual Tillis (R) +1.6 | Difference 2.6 |
| Oct 23-24 | 771LV | Governor (GA) General election | IVR | Poll Deal (R) +3.0 | Actual Deal (R) +7.9 | Difference 4.9 |
| Oct 23-24 | 771LV | Senate (GA) General election | IVR | Poll Even | Actual Perdue (R) +7.7 | Difference 7.7 |
| Oct 22-23 | 660LV | Governor (ME) General election | IVR | Poll Even | Actual LePage (R) +4.8 | Difference 4.8 |
| Oct 20-21 | 764LV | Senate (NH) General election | IVR | Poll Shaheen (D) +4.0 | Actual Shaheen (D) +3.2 | Difference 0.8 |
| Oct 20-21 | 723LV | Senate (MI) General election | IVR | Poll Peters (D) +14.0 | Actual Peters (D) +13.3 | Difference 0.7 |
| Oct 20-21 | 723LV | Governor (MI) General election | IVR | Poll Even | Actual Snyder (R) +4.1 | Difference 4.1 |
| Oct 20-21 | 764LV | Governor (NH) General election | IVR | Poll Hassan (D) +10.0 | Actual Hassan (D) +4.9 | Difference 5.1 |
| Oct 16-19 | 778LV | Governor (CO) General election | IVR/Online | Poll Even | Actual Hickenlooper (D) +3.3 | Difference 3.3 |
| Oct 16-19 | 778LV | Senate (CO) General election | IVR/Online | Poll Gardner (R) +3.0 | Actual Gardner (R) +1.9 | Difference 1.1 |
| Oct 16-19 | 778LV | Governor (CO) General election | IVR/Online | Poll Hickenlooper (D) +1.0 | Actual Hickenlooper (D) +3.3 | Difference 2.3 |
| Oct 18-19 | 595V | Senate (TN) General election | IVR/Online | Poll Alexander (R) +13.0 | Actual Alexander (R) +30.0 | Difference 17.0 |
| Oct 17-18 | 860LV | Governor (WI) General election | IVR/Online | Poll Walker (R) +1.0 | Actual Walker (R) +5.7 | Difference 4.7 |
| Oct 16-18 | 780LV | Senate (NC) General election | IVR/Online | Poll Hagan (D) +3.0 | Actual Tillis (R) +1.6 | Difference 4.6 |
| Oct 15-16 | 714LV | Senate (IA) General election | IVR | Poll Braley (D) +1.0 | Actual Ernst (R) +8.3 | Difference 9.3 |
| Mar 7-9 | 702LV | House (FL-13) Special election | IVR | Poll Sink (D) +3.0 | Actual Jolly (R) +1.9 | Difference 4.9 |
2013
| Dates | Sample | Race | Methodology | Poll margin | Election margin | Difference |
|---|---|---|---|---|---|---|
| Nov 2-3 | 870LV | Governor (VA) General election | IVR | Poll McAuliffe (D) +7.0 | Actual McAuliffe (D) +2.5 | Difference 4.5 |
| Jun 3-4 | 560LV | Senate (MA) Special election | IVR | Poll Markey (D) +8.0 | Actual Markey (D) +10.2 | Difference 2.2 |
| May 4-5 | 1,239LV | House (SC-1) Special election | IVR | Poll Sanford (R) +1.0 | Actual Sanford (R) +8.8 | Difference 7.8 |
| Apr 19-21 | 796LV | House (SC-1) Special election | IVR | Poll Busch (D) +9.0 | Actual Sanford (R) +8.8 | Difference 17.8 |
2012
| Dates | Sample | Race | Methodology | Poll margin | Election margin | Difference |
|---|---|---|---|---|---|---|
| Nov 3-4 | 975LV | Senate (VA) General election | IVR | Poll Kaine (D) +6.0 | Actual Kaine (D) +5.9 | Difference 0.1 |
| Nov 3-4 | 1,000LV | Senate (OH) General election | IVR | Poll Brown (D) +10.0 | Actual Brown (D) +6.0 | Difference 4.0 |
| Nov 3-4 | 750LV | Senate (NV) General election | IVR | Poll Heller (R) +2.0 | Actual Heller (R) +1.2 | Difference 0.8 |
| Nov 3-4 | 955LV | Senate (FL) General election | IVR | Poll Nelson (D) +5.0 | Actual Nelson (D) +13.0 | Difference 8.0 |
| Nov 3-4 | 926LV | Governor (NC) General election | IVR | Poll McCrory (R) +7.0 | Actual McCrory (R) +11.4 | Difference 4.4 |
| Nov 3-4 | 1,550LV | Governor (NH) General election | IVR | Poll Hassan (D) +4.0 | Actual Hassan (D) +12.1 | Difference 8.1 |
| Nov 3-4 | 975LV | President (VA) General election | IVR | Poll Obama (D) +4.0 | Actual Obama (D) +3.9 | Difference 0.1 |
| Nov 3-4 | 1,000LV | President (OH) General election | IVR | Poll Obama (D) +5.0 | Actual Obama (D) +3.0 | Difference 2.0 |
| Nov 3-4 | 750LV | President (NV) General election | IVR | Poll Obama (D) +4.0 | Actual Obama (D) +6.7 | Difference 2.7 |
| Nov 3-4 | 1,550LV | President (NH) General election | IVR | Poll Obama (D) +2.0 | Actual Obama (D) +5.6 | Difference 3.6 |
| Nov 3-4 | 926LV | President (NC) General election | IVR | Poll Romney (R) +0.2 | Actual Romney (R) +2.0 | Difference 1.8 |
| Nov 3-4 | 1,122LV | President (IA) General election | IVR | Poll Obama (D) +2.0 | Actual Obama (D) +5.8 | Difference 3.8 |
| Nov 3-4 | 955LV | President (FL) General election | IVR | Poll Obama (D) +1.0 | Actual Obama (D) +0.9 | Difference 0.1 |
| Nov 3-4 | 1,096LV | President (CO) General election | IVR | Poll Obama (D) +6.0 | Actual Obama (D) +5.4 | Difference 0.6 |
| Nov 1-4 | 1,300LV | House (National) General election | IVR | Poll Candidate (D) +1.0 | Actual Candidate (D) +1.0 | Difference 0.0 |
| Nov 1-4 | 1,300LV | President (National) General election | IVR | Poll Obama (D) +2.0 | Actual Obama (D) +3.8 | Difference 1.8 |
| Nov 2-3 | 836LV | Senate (MT) General election | IVR | Poll Tester (D) +2.0 | Actual Tester (D) +3.7 | Difference 1.7 |
| Nov 2-3 | 835LV | Senate (MO) General election | IVR | Poll McCaskill (D) +4.0 | Actual McCaskill (D) +15.7 | Difference 11.7 |
| Nov 2-3 | 1,164LV | Senate (MN) General election | IVR | Poll Klobuchar (D) +30.0 | Actual Klobuchar (D) +34.7 | Difference 4.7 |
| Nov 2-3 | 1,080LV | Senate (AZ) General election | IVR | Poll Flake (R) +5.0 | Actual Flake (R) +3.0 | Difference 2.0 |
| Nov 2-3 | 835LV | Governor (MO) General election | IVR | Poll Nixon (D) +8.0 | Actual Nixon (D) +12.2 | Difference 4.2 |
| Nov 2-3 | 836LV | Governor (MT) General election | IVR | Poll Even | Actual Bullock (D) +1.6 | Difference 1.6 |
| Nov 2-3 | 1,256LV | President (WI) General election | IVR | Poll Obama (D) +3.0 | Actual Obama (D) +6.8 | Difference 3.8 |
| Nov 2-3 | 790LV | President (PA) General election | IVR | Poll Obama (D) +6.0 | Actual Obama (D) +5.4 | Difference 0.6 |
| Nov 2-3 | 836LV | President (MT) General election | IVR | Poll Romney (R) +7.0 | Actual Romney (R) +13.7 | Difference 6.7 |
| Nov 2-3 | 835LV | President (MO) General election | IVR | Poll Romney (R) +8.0 | Actual Romney (R) +9.4 | Difference 1.4 |
| Nov 2-3 | 1,080LV | President (AZ) General election | IVR | Poll Romney (R) +7.0 | Actual Romney (R) +9.1 | Difference 2.1 |
| Nov 1-3 | 932V | Senate (WA) General election | IVR | Poll Cantwell (D) +18.0 | Actual Cantwell (D) +20.9 | Difference 2.9 |
| Nov 1-3 | 700LV | Senate (MI) General election | IVR | Poll Stabenow (D) +13.0 | Actual Stabenow (D) +20.8 | Difference 7.8 |
| Nov 1-3 | 932V | Governor (WA) General election | IVR | Poll Inslee (D) +2.0 | Actual Inslee (D) +3.1 | Difference 1.1 |
| Nov 1-3 | 932V | President (WA) General election | IVR | Poll Obama (D) +7.0 | Actual Obama (D) +14.9 | Difference 7.9 |
| Nov 1-3 | 700LV | President (MI) General election | IVR | Poll Obama (D) +6.0 | Actual Obama (D) +9.5 | Difference 3.5 |
| Nov 2-3 | 836LV | House (MT-1) General election | IVR | Poll Daines (R) +4.0 | Actual Daines (R) +10.5 | Difference 6.5 |
| Nov 2-3 | 1,256LV | Senate (WI) General election | IVR | Poll Baldwin (D) +3.0 | Actual Baldwin (D) +5.5 | Difference 2.5 |
| Nov 2-3 | 790LV | Senate (PA) General election | IVR | Poll Casey (D) +8.0 | Actual Casey (D) +9.1 | Difference 1.1 |
| Nov 1-2 | 1,089LV | Senate (MA) General election | IVR | Poll Warren (D) +6.0 | Actual Warren (D) +7.5 | Difference 1.5 |
| Nov 1-2 | 1,633LV | Senate (ME) General election | IVR | Poll King (I) +14.0 | Actual King (I) +22.1 | Difference 8.1 |
| Nov 1-2 | 1,220LV | President (CT) General election | IVR | Poll Obama (D) +13.0 | Actual Obama (D) +17.3 | Difference 4.3 |
| Nov 1-2 | 1,633LV | President (ME) General election | IVR | Poll Obama (D) +13.0 | Actual Obama (D) +15.3 | Difference 2.3 |
| Nov 1-2 | 1,089LV | President (MA) General election | IVR | Poll Obama (D) +15.0 | Actual Obama (D) +23.1 | Difference 8.1 |
| Nov 1-2 | 768LV | President (ME-2) General election | IVR | Poll Obama (D) +5.0 | Actual Obama (D) +8.6 | Difference 3.6 |
| Nov 1-2 | 865LV | President (ME-1) General election | IVR | Poll Obama (D) +20.0 | Actual Obama (D) +21.4 | Difference 1.4 |
| Nov 1-2 | 1,220LV | Senate (CT) General election | IVR | Poll Murphy (D) +9.0 | Actual Murphy (D) +11.8 | Difference 2.8 |
| Oct 31-Nov 1 | 825LV | President (CO) General election | IVR | Poll Obama (D) +4.0 | Actual Obama (D) +5.4 | Difference 1.4 |
| Oct 31-Nov 1 | 772LV | President (MN) General election | IVR | Poll Obama (D) +9.0 | Actual Obama (D) +7.7 | Difference 1.3 |
| Oct 29-31 | 730LV | President (NC) General election | IVR | Poll Even | Actual Romney (R) +2.0 | Difference 2.0 |
| Oct 29-31 | 730LV | Governor (NC) General election | IVR | Poll McCrory (R) +11.0 | Actual McCrory (R) +11.4 | Difference 0.4 |
| Oct 30-31 | 500LV | President (MI) General election | IVR | Poll Obama (D) +8.0 | Actual Obama (D) +9.5 | Difference 1.5 |
| Oct 30-31 | 600LV | President (VA) General election | IVR | Poll Obama (D) +3.0 | Actual Obama (D) +3.9 | Difference 0.9 |
| Oct 29-30 | 676LV | President (IA) General election | IVR | Poll Obama (D) +5.0 | Actual Obama (D) +5.8 | Difference 0.8 |
| Oct 29-30 | 600LV | President (OH) General election | IVR | Poll Obama (D) +5.0 | Actual Obama (D) +3.0 | Difference 2.0 |
| Oct 29-30 | 825LV | President (WI) General election | IVR | Poll Obama (D) +5.0 | Actual Obama (D) +6.8 | Difference 1.8 |
| Oct 25-28 | 1,400LV | House (National) General election | IVR | Poll Candidate (D) +1.0 | Actual Candidate (D) +1.0 | Difference 0.0 |
| Oct 26-28 | 718LV | Senate (OH) General election | IVR | Poll Brown (D) +11.0 | Actual Brown (D) +6.0 | Difference 5.0 |
| Oct 26-28 | 874LV | Governor (NH) General election | IVR | Poll Hassan (D) +4.0 | Actual Hassan (D) +12.1 | Difference 8.1 |
| Oct 26-28 | 718LV | President (OH) General election | IVR | Poll Obama (D) +4.0 | Actual Obama (D) +3.0 | Difference 1.0 |
| Oct 26-28 | 874LV | President (NH) General election | IVR | Poll Obama (D) +2.0 | Actual Obama (D) +5.6 | Difference 3.6 |
| Oct 26-28 | 687LV | President (FL) General election | IVR | Poll Obama (D) +1.0 | Actual Obama (D) +0.9 | Difference 0.1 |
| Oct 26-28 | 1,200LV | President (National) General election | IVR | Poll Romney (R) +1.0 | Actual Obama (D) +3.8 | Difference 4.8 |
| Oct 26-28 | 687LV | Senate (FL) General election | IVR | Poll Nelson (D) +8.0 | Actual Nelson (D) +13.0 | Difference 5.0 |
| Oct 25-26 | 654LV | House (NH-1) General election | IVR | Poll Guinta (R) +1.0 | Actual Shea-Porter (D) +3.8 | Difference 4.8 |
| Oct 25-26 | 1,020LV | House (MN-8) General election | IVR | Poll Nolan (D) +4.0 | Actual Nolan (D) +8.9 | Difference 4.9 |
| Oct 25-26 | 500LV | House (IL-8) General election | IVR | Poll Duckworth (D) +14.0 | Actual Duckworth (D) +9.5 | Difference 4.5 |
| Oct 25-26 | 631LV | House (FL-18) General election | IVR | Poll Murphy (D) +1.0 | Actual Murphy (D) +0.6 | Difference 0.4 |
| Oct 25-26 | 792LV | House (CA-7) General election | IVR | Poll Even | Actual Bera (D) +3.4 | Difference 3.4 |
| Oct 23-25 | 880LV | Governor (NC) General election | IVR | Poll McCrory (R) +13.0 | Actual McCrory (R) +11.4 | Difference 1.6 |
| Oct 23-25 | 880LV | President (NC) General election | IVR | Poll Even | Actual Romney (R) +2.0 | Difference 2.0 |
| Oct 23-25 | 904LV | President (CO) General election | IVR | Poll Obama (D) +3.0 | Actual Obama (D) +5.4 | Difference 2.4 |
| Oct 23-25 | 1,200LV | President (National) General election | IVR | Poll Even | Actual Obama (D) +3.8 | Difference 3.8 |
| Oct 23-25 | 904LV | President (CO) General election | IVR | Poll Obama (D) +4.0 | Actual Obama (D) +5.4 | Difference 1.4 |
| Oct 23-24 | 690LV | President (IA) General election | IVR | Poll Obama (D) +2.0 | Actual Obama (D) +5.8 | Difference 3.8 |
| Oct 22-24 | 636LV | Senate (NV) General election | IVR | Poll Even | Actual Heller (R) +1.2 | Difference 1.2 |
| Oct 22-24 | 636LV | President (NV) General election | IVR | Poll Obama (D) +2.0 | Actual Obama (D) +6.7 | Difference 4.7 |
| Oct 23-24 | 727LV | President (NM) General election | IVR | Poll Obama (D) +9.0 | Actual Obama (D) +10.1 | Difference 1.1 |
| Oct 23-24 | 727LV | Senate (NM) General election | IVR | Poll Heinrich (D) +8.0 | Actual Heinrich (D) +5.7 | Difference 2.3 |
| Oct 23-24 | 827LV | President (WI) General election | IVR | Poll Obama (D) +6.0 | Actual Obama (D) +6.8 | Difference 0.8 |
| Oct 23-24 | 722LV | President (VA) General election | IVR | Poll Obama (D) +5.0 | Actual Obama (D) +3.9 | Difference 1.1 |
| Oct 22-24 | 636LV | President (NV) General election | IVR | Poll Obama (D) +4.0 | Actual Obama (D) +6.7 | Difference 2.7 |
| Oct 20-22 | 1,200LV | President (National) General election | IVR | Poll Romney (R) +2.0 | Actual Obama (D) +3.8 | Difference 5.8 |
| Oct 22 | 955LV | House (NY-23) General election | IVR | Poll Reed (R) +5.0 | Actual Reed (R) +3.8 | Difference 1.2 |
| Oct 19-21 | 582LV | Senate (MO) General election | IVR | Poll McCaskill (D) +6.0 | Actual McCaskill (D) +15.7 | Difference 9.7 |
| Oct 18-21 | 1,300LV | House (National) General election | IVR | Poll Even | Actual Candidate (D) +1.0 | Difference 1.0 |
| Oct 19-21 | 582LV | Governor (MO) General election | IVR | Poll Nixon (D) +11.0 | Actual Nixon (D) +12.2 | Difference 1.2 |
| Oct 19-21 | 582LV | President (MO) General election | IVR | Poll Romney (R) +6.0 | Actual Romney (R) +9.4 | Difference 3.4 |
| Oct 18-20 | 532LV | President (OH) General election | IVR | Poll Obama (D) +1.0 | Actual Obama (D) +3.0 | Difference 2.0 |
| Oct 18-20 | 532LV | Senate (OH) General election | IVR | Poll Brown (D) +5.0 | Actual Brown (D) +6.0 | Difference 1.0 |
| Oct 18-19 | 500LV | President (VA) General election | IVR | Poll Obama (D) +2.0 | Actual Obama (D) +3.9 | Difference 1.9 |
| Oct 17-19 | 1,036LV | Governor (NH) General election | IVR | Poll Hassan (D) +2.0 | Actual Hassan (D) +12.1 | Difference 10.1 |
| Oct 17-19 | 1,036LV | President (NH) General election | IVR | Poll Romney (R) +1.0 | Actual Obama (D) +5.6 | Difference 6.6 |
| Oct 17-19 | 869LV | President (IA) General election | IVR | Poll Romney (R) +1.0 | Actual Obama (D) +5.8 | Difference 6.8 |
| Oct 17-19 | 1,200LV | President (National) General election | IVR | Poll Obama (D) +2.0 | Actual Obama (D) +3.8 | Difference 1.8 |
| Oct 18-19 | 660LV | President (IA) General election | IVR | Poll Obama (D) +1.0 | Actual Obama (D) +5.8 | Difference 4.8 |
| Oct 17-18 | 800LV | President (FL) General election | IVR | Poll Romney (R) +1.0 | Actual Obama (D) +0.9 | Difference 1.9 |
| Oct 17-18 | 800LV | Senate (FL) General election | IVR | Poll Nelson (D) +4.0 | Actual Nelson (D) +13.0 | Difference 9.0 |
| Oct 16-18 | 1,000LV | President (CO) General election | IVR | Poll Obama (D) +5.0 | Actual Obama (D) +5.4 | Difference 0.4 |
| Oct 16-18 | 1,000LV | President (CO) General election | IVR | Poll Obama (D) +3.0 | Actual Obama (D) +5.4 | Difference 2.4 |
| Oct 15-16 | 709LV | Senate (MA) General election | IVR | Poll Warren (D) +9.0 | Actual Warren (D) +7.5 | Difference 1.5 |
| Oct 15-16 | 1,015LV | Senate (CT) General election | IVR | Poll Murphy (D) +4.0 | Actual Murphy (D) +11.8 | Difference 7.8 |
| Oct 15-16 | 574LV | Governor (WA) General election | IVR | Poll Inslee (D) +6.0 | Actual Inslee (D) +3.1 | Difference 2.9 |
| Oct 15-16 | 733LV | President (VA) General election | IVR | Poll Obama (D) +1.0 | Actual Obama (D) +3.9 | Difference 2.9 |
| Oct 15-16 | 806LV | President (MT) General election | IVR | Poll Romney (R) +10.0 | Actual Romney (R) +13.7 | Difference 3.7 |
| Oct 15-16 | 709LV | President (MA) General election | IVR | Poll Obama (D) +18.0 | Actual Obama (D) +23.1 | Difference 5.1 |
| Oct 15-16 | 1,015LV | President (CT) General election | IVR | Poll Obama (D) +9.0 | Actual Obama (D) +17.3 | Difference 8.3 |
| Oct 15-16 | 574LV | President (WA) General election | IVR | Poll Obama (D) +5.0 | Actual Obama (D) +14.9 | Difference 9.9 |
| Oct 15-16 | 500LV | House (FL-22) General election | IVR | Poll Frankel (D) +3.0 | Actual Frankel (D) +9.3 | Difference 6.3 |
| Oct 15-16 | 500LV | House (FL-18) General election | IVR | Poll West (R) +9.0 | Actual Murphy (D) +0.6 | Difference 9.6 |
| Oct 15-16 | 733LV | Senate (VA) General election | IVR | Poll Kaine (D) +5.0 | Actual Kaine (D) +5.9 | Difference 0.9 |
| Oct 15-16 | 806LV | Senate (MT) General election | IVR | Poll Tester (D) +2.0 | Actual Tester (D) +3.7 | Difference 1.7 |
| Jun 9-10 | 2,012LV | House (AZ-8) Special election | IVR | Poll Barber (D) +12.0 | Actual Barber (D) +6.9 | Difference 5.1 |
| Jun 2-3 | 1,226LV | Governor (WI) Special election | IVR | Poll Walker (R) +3.0 | Actual Walker (R) +6.8 | Difference 3.8 |
| Mar 31-Apr 1 | 609LV | President (WI) Republican primary | IVR | Poll Romney (R) +7.0 | Actual Romney (R) +7.2 | Difference 0.2 |
| Mar 31-Apr 1 | 500LV | President (MD) Republican primary | IVR | Poll Romney (R) +25.0 | Actual Romney (R) +20.5 | Difference 4.5 |
| Mar 21-22 | 650LV | President (LA) Republican primary | IVR | Poll Santorum (R) +14.0 | Actual Santorum (R) +22.3 | Difference 8.3 |
| Mar 17-18 | 506LV | President (IL) Republican primary | IVR | Poll Romney (R) +15.0 | Actual Romney (R) +11.7 | Difference 3.3 |
| Mar 10-11 | 600LV | President (AL) Republican primary | IVR | Poll Gingrich (R) +1.0 | Actual Santorum (R) +5.2 | Difference 6.2 |
| Mar 10-11 | 656LV | President (MS) Republican primary | IVR | Poll Gingrich (R) +6.0 | Actual Santorum (R) +1.6 | Difference 7.6 |
| Mar 3-4 | 525LV | President (TN) Republican primary | IVR | Poll Santorum (R) +5.0 | Actual Santorum (R) +9.0 | Difference 4.0 |
| Mar 3-4 | 728LV | President (GA) Republican primary | IVR | Poll Gingrich (R) +23.0 | Actual Gingrich (R) +21.3 | Difference 1.7 |
| Mar 3-4 | 666LV | President (OH) Republican primary | IVR | Poll Romney (R) +1.0 | Actual Romney (R) +1.0 | Difference 0.0 |
| Feb 29-Mar 1 | 447LV | President (WA) Republican primary | IVR | Poll Romney (R) +21.0 | Actual Romney (R) +12.8 | Difference 8.2 |
| Feb 27 | 501LV | President (MI) Republican primary | IVR | Poll Santorum (R) +5.0 | Actual Romney (R) +3.2 | Difference 8.2 |
| Feb 26 | 421LV | President (MI) Republican primary | IVR | Poll Romney (R) +3.0 | Actual Romney (R) +3.2 | Difference 0.2 |
| Feb 26 | 515LV | President (AZ) Republican primary | IVR | Poll Romney (R) +17.0 | Actual Romney (R) +19.8 | Difference 2.8 |
| Feb 16-19 | 400LV | President (WA) Republican primary | IVR | Poll Romney (R) +12.0 | Actual Romney (R) +12.8 | Difference 0.8 |
| Feb 17-19 | 602LV | President (MI) Republican primary | IVR | Poll Santorum (R) +4.0 | Actual Romney (R) +3.2 | Difference 7.2 |
| Feb 17-19 | 412V | President (AZ) Republican primary | IVR | Poll Romney (R) +3.0 | Actual Romney (R) +19.8 | Difference 16.8 |
| Feb 10-12 | 404V | President (MI) Republican primary | IVR | Poll Santorum (R) +15.0 | Actual Romney (R) +3.2 | Difference 18.2 |
| Feb 4-6 | 864LV | President (MN) Republican primary | IVR | Poll Santorum (R) +13.0 | Actual Santorum (R) +17.8 | Difference 4.8 |
| Feb 4-6 | 938LV | President (CO) Republican primary | IVR | Poll Romney (R) +10.0 | Actual Santorum (R) +5.5 | Difference 15.5 |
| Feb 4 | 410LV | President (MN) Republican primary | IVR | Poll Santorum (R) +10.0 | Actual Santorum (R) +17.8 | Difference 7.8 |
| Feb 4 | 527LV | President (CO) Republican primary | IVR | Poll Romney (R) +14.0 | Actual Santorum (R) +5.5 | Difference 19.5 |
| Feb 1-2 | 937LV | President (NV) Republican primary | IVR | Poll Romney (R) +25.0 | Actual Romney (R) +28.9 | Difference 3.9 |
| Jan 30 | 354LV | President (FL) Republican primary | IVR | Poll Romney (R) +7.0 | Actual Romney (R) +14.5 | Difference 7.5 |
| Jan 29 | 346LV | President (FL) Republican primary | IVR | Poll Romney (R) +9.0 | Actual Romney (R) +14.5 | Difference 5.5 |
| Jan 28 | 387LV | President (FL) Republican primary | IVR | Poll Romney (R) +8.0 | Actual Romney (R) +14.5 | Difference 6.5 |
| Jan 22-23 | 921LV | President (FL) Republican primary | IVR | Poll Gingrich (R) +5.0 | Actual Romney (R) +14.5 | Difference 19.5 |
| Jan 21-22 | 303LV | President (MN) Republican primary | IVR | Poll Santorum (R) +4.0 | Actual Santorum (R) +17.8 | Difference 13.8 |
| Jan 20 | 704LV | President (SC) Republican primary | IVR | Poll Gingrich (R) +14.0 | Actual Gingrich (R) +12.6 | Difference 1.4 |
| Jan 19 | 457LV | President (SC) Republican primary | IVR | Poll Gingrich (R) +6.0 | Actual Gingrich (R) +12.6 | Difference 6.6 |
| Jan 18 | 379LV | President (SC) Republican primary | IVR | Poll Gingrich (R) +4.0 | Actual Gingrich (R) +12.6 | Difference 8.6 |
| Jan 14-16 | 572LV | President (FL) Republican primary | IVR | Poll Romney (R) +15.0 | Actual Romney (R) +14.5 | Difference 0.5 |
| Jan 11-13 | 803LV | President (SC) Republican primary | IVR | Poll Romney (R) +5.0 | Actual Gingrich (R) +12.6 | Difference 17.6 |
| Jan 7-8 | 1,771LV | President (NH) Republican primary | IVR | Poll Romney (R) +17.0 | Actual Romney (R) +16.4 | Difference 0.6 |
| Jan 1 | 670LV | President (IA) Republican primary | IVR | Poll Even | Actual Santorum (R) +0.0 | Difference 0.0 |
| Dec 31 | 670LV | President (IA) Republican primary | IVR | Poll Romney (R) +3.0 | Actual Santorum (R) +0.0 | Difference 3.0 |
| Dec 26-27 | 565LV | President (IA) Republican primary | IVR | Poll Romney (R) +10.0 | Actual Santorum (R) +0.0 | Difference 10.0 |
| Dec 16-18 | 597LV | President (IA) Republican primary | IVR | Poll Romney (R) +10.0 | Actual Santorum (R) +0.0 | Difference 10.0 |
2011
| Dates | Sample | Race | Methodology | Poll margin | Election margin | Difference |
|---|---|---|---|---|---|---|
| Nov 4-6 | 796LV | Governor (MS) General election | IVR | Poll Bryant (R) +14.0 | Actual Bryant (R) +22.0 | Difference 8.0 |
| Sep 30-Oct 2 | 932LV | Governor (WV) Special election | IVR | Poll Tomblin (D) +1.0 | Actual Tomblin (D) +2.5 | Difference 1.5 |
| Sep 9-11 | 629LV | House (NV-2) Special election | IVR | Poll Amodei (R) +13.0 | Actual Amodei (R) +21.9 | Difference 8.9 |
| Sep 8-11 | 664LV | House (NY-9) Special election | IVR | Poll Turner (R) +6.0 | Actual Turner (R) +5.2 | Difference 0.8 |
| Jul 8-10 | 619LV | House (CA-36) Special election | IVR | Poll Hahn (D) +8.0 | Actual Hahn (D) +9.8 | Difference 1.8 |
| May 21-22 | 1,106LV | House (NY-26) Special election | IVR | Poll Hochul (D) +6.0 | Actual Hochul (D) +5.0 | Difference 1.0 |
| May 5-8 | 1,048LV | House (NY-26) Special election | IVR | Poll Hochul (D) +4.0 | Actual Hochul (D) +5.0 | Difference 1.0 |
2010
| Dates | Sample | Race | Methodology | Poll margin | Election margin | Difference |
|---|---|---|---|---|---|---|
| Oct 30-31 | 1,676LV | Senate (WV) Special election | IVR | Poll Manchin (D) +5.0 | Actual Manchin (D) +10.1 | Difference 5.1 |
| Oct 30-31 | 772LV | Senate (PA) General election | IVR | Poll Toomey (R) +5.0 | Actual Toomey (R) +2.0 | Difference 3.0 |
| Oct 30-31 | 682LV | Senate (NV) General election | IVR | Poll Angle (R) +1.0 | Actual Reid (D) +5.7 | Difference 6.7 |
| Oct 30-31 | 814LV | Senate (IL) General election | IVR | Poll Kirk (R) +1.0 | Actual Kirk (R) +1.6 | Difference 0.6 |
| Oct 30-31 | 814LV | Senate (IL) General election | IVR | Poll Kirk (R) +4.0 | Actual Kirk (R) +1.6 | Difference 2.4 |
| Oct 30-31 | 773LV | Senate (FL) General election | IVR | Poll Rubio (R) +17.0 | Actual Rubio (R) +19.2 | Difference 2.2 |
| Oct 30-31 | 1,059LV | Senate (CO) General election | IVR | Poll Buck (R) +1.0 | Actual Bennet (D) +1.6 | Difference 2.6 |
| Oct 30-31 | 1,539LV | Senate (AK) General election | IVR | Poll Miller (R) +7.0 | Actual Murkowski (W) +4.0 | Difference 11.0 |
| Oct 30-31 | 772LV | Governor (PA) General election | IVR | Poll Corbett (R) +7.0 | Actual Corbett (R) +9.0 | Difference 2.0 |
| Oct 30-31 | 682LV | Governor (NV) General election | IVR | Poll Sandoval (R) +11.0 | Actual Sandoval (R) +11.7 | Difference 0.7 |
| Oct 30-31 | 814LV | Governor (IL) General election | IVR | Poll Brady (R) +5.0 | Actual Quinn (D) +0.9 | Difference 5.9 |
| Oct 30-31 | 773LV | Governor (FL) General election | IVR | Poll Sink (D) +1.0 | Actual Scott (R) +1.1 | Difference 2.1 |
| Oct 30-31 | 1,059LV | Governor (CO) General election | IVR | Poll Hickenlooper (D) +5.0 | Actual Hickenlooper (D) +14.7 | Difference 9.7 |
| Oct 30-31 | 1,539LV | Governor (AK) General election | IVR | Poll Parnell (R) +11.0 | Actual Parnell (R) +21.4 | Difference 10.4 |
| Oct 29-31 | 2,055LV | Senate (WA) General election | IVR | Poll Rossi (R) +2.0 | Actual Murray (D) +4.7 | Difference 6.7 |
| Oct 29-31 | 847LV | Senate (NC) General election | IVR | Poll Burr (R) +12.0 | Actual Burr (R) +11.8 | Difference 0.2 |
| Oct 29-31 | 882LV | Senate (CA) General election | IVR | Poll Boxer (D) +4.0 | Actual Boxer (D) +10.0 | Difference 6.0 |
| Oct 29-31 | 882LV | Governor (CA) General election | IVR | Poll Brown (D) +5.0 | Actual Brown (D) +12.9 | Difference 7.9 |
| Oct 28-30 | 1,356LV | Senate (OH) General election | IVR | Poll Portman (R) +18.0 | Actual Portman (R) +17.4 | Difference 0.6 |
| Oct 28-30 | 1,356LV | Governor (OH) General election | IVR | Poll Kasich (R) +1.0 | Actual Kasich (R) +2.0 | Difference 1.0 |
| Oct 28-30 | 1,021LV | Senate (KY) General election | IVR | Poll Paul (R) +15.0 | Actual Paul (R) +11.5 | Difference 3.5 |
| Oct 27-29 | 1,308LV | Senate (NH) General election | IVR | Poll Ayotte (R) +15.0 | Actual Ayotte (R) +23.2 | Difference 8.2 |
| Oct 27-29 | 759LV | Senate (CT) General election | IVR | Poll Blumenthal (D) +11.0 | Actual Blumenthal (D) +11.9 | Difference 0.9 |
| Oct 27-29 | 2,058LV | Governor (MN) General election | IVR | Poll Dayton (D) +3.0 | Actual Dayton (D) +0.4 | Difference 2.6 |
| Oct 27-29 | 1,308LV | Governor (NH) General election | IVR | Poll Lynch (D) +9.0 | Actual Lynch (D) +7.6 | Difference 1.4 |
| Oct 27-29 | 759LV | Governor (CT) General election | IVR | Poll Foley (R) +2.0 | Actual Malloy (D) +0.6 | Difference 2.6 |
| Oct 26-28 | 1,372LV | Senate (WI) General election | IVR | Poll Johnson (R) +9.0 | Actual Johnson (R) +4.8 | Difference 4.2 |
| Oct 26-28 | 1,372LV | Governor (WI) General election | IVR | Poll Walker (R) +9.0 | Actual Walker (R) +5.8 | Difference 3.2 |
| Oct 26-28 | 568LV | Governor (TX) General election | IVR | Poll Perry (R) +9.0 | Actual Perry (R) +12.7 | Difference 3.7 |
| Oct 26-28 | 1,812LV | Governor (ME) General election | IVR | Poll LePage (R) +12.0 | Actual LePage (R) +11.2 | Difference 0.8 |
| Oct 23-24 | 600LV | House (WI-8) General election | IVR | Poll Ribble (R) +3.0 | Actual Ribble (R) +9.6 | Difference 6.6 |
| Oct 23-24 | 1,246LV | Senate (WV) Special election | IVR | Poll Manchin (D) +6.0 | Actual Manchin (D) +10.1 | Difference 4.1 |
| Oct 23-24 | 664LV | Senate (AZ) General election | IVR | Poll McCain (R) +18.0 | Actual McCain (R) +24.2 | Difference 6.2 |
| Oct 23-24 | 664LV | Governor (AZ) General election | IVR | Poll Brewer (R) +8.0 | Actual Brewer (R) +11.9 | Difference 3.9 |
| Oct 21-24 | 900LV | Senate (KY) General election | IVR | Poll Paul (R) +13.0 | Actual Paul (R) +11.5 | Difference 1.5 |
| Oct 21-23 | 818LV | Senate (CO) General election | IVR | Poll Even | Actual Bennet (D) +1.6 | Difference 1.6 |
| Oct 21-23 | 622LV | Senate (CA) General election | IVR | Poll Boxer (D) +9.0 | Actual Boxer (D) +10.0 | Difference 1.0 |
| Oct 21-23 | 818LV | Governor (CO) General election | IVR | Poll Hickenlooper (D) +3.0 | Actual Hickenlooper (D) +14.7 | Difference 11.7 |
| Oct 21-23 | 622LV | Governor (CA) General election | IVR | Poll Brown (D) +11.0 | Actual Brown (D) +12.9 | Difference 1.9 |
| Oct 17-18 | 718LV | Senate (PA) General election | IVR | Poll Sestak (D) +1.0 | Actual Toomey (R) +2.0 | Difference 3.0 |
| Oct 17-18 | 646LV | Senate (MO) General election | IVR | Poll Blunt (R) +5.0 | Actual Blunt (R) +13.6 | Difference 8.6 |
| Oct 17-18 | 718LV | Governor (PA) General election | IVR | Poll Corbett (R) +2.0 | Actual Corbett (R) +9.0 | Difference 7.0 |
| Oct 16-17 | 655LV | House (AZ-3) General election | IVR | Poll Hulburd (D) +2.0 | Actual Quayle (R) +11.1 | Difference 13.1 |
| Oct 16-17 | 1,229LV | Senate (OR) General election | IVR | Poll Wyden (D) +16.0 | Actual Wyden (D) +18.0 | Difference 2.0 |
| Oct 16-17 | 1,229LV | Governor (OR) General election | IVR | Poll Kitzhaber (D) +1.0 | Actual Kitzhaber (D) +1.5 | Difference 0.5 |
| Oct 15-17 | 597LV | Senate (NC) General election | IVR | Poll Burr (R) +8.0 | Actual Burr (R) +11.8 | Difference 3.8 |
| Oct 14-16 | 1,873LV | Senate (WA) General election | IVR | Poll Murray (D) +2.0 | Actual Murray (D) +4.7 | Difference 2.7 |
| Oct 14-16 | 557LV | Senate (IL) General election | IVR | Poll Kirk (R) +2.0 | Actual Kirk (R) +1.6 | Difference 0.4 |
| Oct 14-16 | 557LV | Senate (IL) General election | IVR | Poll Kirk (R) +1.0 | Actual Kirk (R) +1.6 | Difference 0.6 |
| Oct 14-16 | 557LV | Governor (IL) General election | IVR | Poll Brady (R) +1.0 | Actual Quinn (D) +0.9 | Difference 1.9 |
| Oct 14-16 | 557LV | Governor (IL) General election | IVR | Poll Brady (R) +5.0 | Actual Quinn (D) +0.9 | Difference 5.9 |
| May 15-16 | 831LV | House (PA-12) Special election | IVR | Poll Burns (R) +1.0 | Actual Critz (D) +7.7 | Difference 8.7 |
| Jan 16-17 | 1,231LV | Senate (MA) Special election | IVR | Poll Brown (R) +5.0 | Actual Brown (R) +4.8 | Difference 0.2 |
| Jan 7-9 | 774LV | Senate (MA) Special election | IVR | Poll Brown (R) +1.0 | Actual Brown (R) +4.8 | Difference 3.8 |
2009
| Dates | Sample | Race | Methodology | Poll margin | Election margin | Difference |
|---|---|---|---|---|---|---|
| Oct 31-Nov 1 | 1,754LV | House (NY-23) Special election | IVR | Poll Hoffman (C) +17.0 | Actual Owens (D) +2.4 | Difference 19.4 |
| Oct 31-Nov 1 | 994LV | Governor (NJ) General election | IVR | Poll Christie (R) +6.0 | Actual Christie (R) +3.6 | Difference 2.4 |
| Oct 30-Nov 1 | 1,457LV | Governor (VA) General election | IVR | Poll McDonnell (R) +14.0 | Actual McDonnell (R) +17.4 | Difference 3.4 |
| Oct 23-26 | 729LV | Governor (VA) General election | IVR | Poll McDonnell (R) +15.0 | Actual McDonnell (R) +17.4 | Difference 2.4 |
| Oct 23-26 | 630LV | Governor (NJ) General election | IVR | Poll Christie (R) +4.0 | Actual Christie (R) +3.6 | Difference 0.4 |
| Oct 16-19 | 666LV | Governor (VA) General election | IVR | Poll McDonnell (R) +12.0 | Actual McDonnell (R) +17.4 | Difference 5.4 |
2008
| Dates | Sample | Race | Methodology | Poll margin | Election margin | Difference |
|---|---|---|---|---|---|---|
| Oct 31-Nov 2 | 2,734LV | House (MT-1) General election | IVR | Poll Rehberg (R) +25.0 | Actual Rehberg (R) +31.7 | Difference 6.7 |
| Oct 31-Nov 2 | 1,557LV | Senate (VA) General election | IVR | Poll Warner (D) +26.0 | Actual Warner (D) +31.3 | Difference 5.3 |
| Oct 31-Nov 2 | 2,100LV | Senate (NC) General election | IVR | Poll Hagan (D) +7.0 | Actual Hagan (D) +8.5 | Difference 1.5 |
| Oct 31-Nov 2 | 2,734LV | Senate (MT) General election | IVR | Poll Baucus (D) +45.0 | Actual Baucus (D) +45.8 | Difference 0.8 |
| Oct 31-Nov 2 | 1,253LV | Senate (GA) General election | IVR | Poll Chambliss (R) +2.0 | Actual Chambliss (R) +2.9 | Difference 0.9 |
| Oct 31-Nov 2 | 2,100LV | Governor (NC) General election | IVR | Poll Perdue (D) +1.0 | Actual Perdue (D) +3.4 | Difference 2.4 |
| Oct 31-Nov 2 | 2,734LV | Governor (MT) General election | IVR | Poll Schweitzer (D) +26.0 | Actual Schweitzer (D) +33.0 | Difference 7.0 |
| Oct 31-Nov 2 | 1,343LV | Governor (MO) General election | IVR | Poll Nixon (D) +19.5 | Actual Nixon (D) +18.9 | Difference 0.6 |
| Oct 31-Nov 2 | 2,634LV | Governor (IN) General election | IVR | Poll Daniels (R) +23.0 | Actual Daniels (R) +17.8 | Difference 5.2 |
| Oct 31-Nov 2 | 1,557LV | President (VA) General election | IVR | Poll Obama (D) +6.0 | Actual Obama (D) +6.3 | Difference 0.3 |
| Oct 31-Nov 2 | 1,529LV | President (PA) General election | IVR | Poll Obama (D) +8.0 | Actual Obama (D) +10.3 | Difference 2.3 |
| Oct 31-Nov 2 | 1,208V | President (OH) General election | IVR | Poll Obama (D) +2.0 | Actual Obama (D) +4.6 | Difference 2.6 |
| Oct 31-Nov 2 | 1,243LV | President (NV) General election | IVR | Poll Obama (D) +4.0 | Actual Obama (D) +12.5 | Difference 8.5 |
| Oct 31-Nov 2 | 2,100LV | President (NC) General election | IVR | Poll Obama (D) +1.0 | Actual Obama (D) +0.3 | Difference 0.7 |
| Oct 31-Nov 2 | 2,734LV | President (MT) General election | IVR | Poll Obama (D) +1.0 | Actual McCain (R) +2.3 | Difference 3.3 |
| Oct 31-Nov 2 | 1,343LV | President (MO) General election | IVR | Poll Even | Actual McCain (R) +0.1 | Difference 0.1 |
| Oct 31-Nov 2 | 2,634LV | President (IN) General election | IVR | Poll Obama (D) +1.0 | Actual Obama (D) +1.0 | Difference 0.0 |
| Oct 31-Nov 2 | 1,253LV | President (GA) General election | IVR | Poll McCain (R) +2.0 | Actual McCain (R) +5.2 | Difference 3.2 |
| Oct 31-Nov 2 | 1,717LV | President (FL) General election | IVR | Poll Obama (D) +2.0 | Actual Obama (D) +2.8 | Difference 0.8 |
| Oct 29-30 | 2,128LV | Senate (WV) General election | IVR | Poll Rockefeller (D) +18.0 | Actual Rockefeller (D) +27.5 | Difference 9.5 |
| Oct 29-30 | 2,128LV | Governor (WV) General election | IVR | Poll Manchin (D) +42.0 | Actual Manchin (D) +44.1 | Difference 2.1 |
| Oct 29-30 | 2,128LV | President (WV) General election | IVR | Poll McCain (R) +13.0 | Actual McCain (R) +13.1 | Difference 0.1 |
| Oct 28-30 | 1,424LV | Senate (OR) General election | IVR | Poll Merkley (D) +8.0 | Actual Merkley (D) +3.4 | Difference 4.6 |
| Oct 28-30 | 1,537LV | Senate (NM) General election | IVR | Poll Udall (D) +19.0 | Actual Udall (D) +22.7 | Difference 3.7 |
| Oct 28-30 | 1,050LV | Senate (MN) General election | IVR | Poll Franken (D) +5.0 | Actual Franken (D) +0.0 | Difference 5.0 |
| Oct 28-30 | 2,023LV | Senate (CO) General election | IVR | Poll Udall (D) +15.0 | Actual Udall (D) +10.3 | Difference 4.7 |
| Oct 28-30 | 1,424LV | President (OR) General election | IVR | Poll Obama (D) +15.0 | Actual Obama (D) +16.3 | Difference 1.3 |
| Oct 28-30 | 1,537LV | President (NM) General election | IVR | Poll Obama (D) +17.0 | Actual Obama (D) +15.1 | Difference 1.9 |
| Oct 28-30 | 1,050LV | President (MN) General election | IVR | Poll Obama (D) +16.0 | Actual Obama (D) +10.2 | Difference 5.8 |
| Oct 28-30 | 1,532LV | President (MI) General election | IVR | Poll Obama (D) +13.0 | Actual Obama (D) +16.5 | Difference 3.5 |
| Oct 28-30 | 2,023LV | President (CO) General election | IVR | Poll Obama (D) +10.0 | Actual Obama (D) +9.0 | Difference 1.0 |
| Oct 28-30 | 1,532LV | Senate (MI) General election | IVR | Poll Levin (D) +22.0 | Actual Levin (D) +28.8 | Difference 6.8 |
| Oct 25-27 | 1,589LV | House (NC-8) General election | IVR | Poll Kissell (D) +5.0 | Actual Kissell (D) +10.8 | Difference 5.8 |
| Oct 25-26 | 1,038LV | Senate (NC) General election | IVR | Poll Hagan (D) +3.0 | Actual Hagan (D) +8.5 | Difference 5.5 |
| Oct 25-26 | 1,038LV | Governor (NC) General election | IVR | Poll Perdue (D) +3.0 | Actual Perdue (D) +3.4 | Difference 0.4 |
| Oct 25-26 | 1,038LV | President (NC) General election | IVR | Poll Obama (D) +1.0 | Actual Obama (D) +0.3 | Difference 0.7 |
| Oct 22-23 | 993LV | President (OH) General election | IVR | Poll Obama (D) +7.0 | Actual Obama (D) +4.6 | Difference 2.4 |
| Oct 21-23 | 1,231LV | Senate (VA) General election | IVR | Poll Warner (D) +28.0 | Actual Warner (D) +31.3 | Difference 3.3 |
| Oct 21-23 | 1,231LV | President (VA) General election | IVR | Poll Obama (D) +9.0 | Actual Obama (D) +6.3 | Difference 2.7 |
| Oct 18-19 | 1,200LV | Senate (NC) General election | IVR | Poll Hagan (D) +7.0 | Actual Hagan (D) +8.5 | Difference 1.5 |
| Oct 18-19 | 1,200LV | Governor (NC) General election | IVR | Poll Perdue (D) +4.0 | Actual Perdue (D) +3.4 | Difference 0.6 |
| Oct 18-19 | 1,411LV | Governor (IN) General election | IVR | Poll Daniels (R) +21.0 | Actual Daniels (R) +17.8 | Difference 3.2 |
| Oct 18-19 | 1,200LV | President (NC) General election | IVR | Poll Obama (D) +7.0 | Actual Obama (D) +0.3 | Difference 6.7 |
| Oct 18-19 | 1,411LV | President (IN) General election | IVR | Poll Obama (D) +2.0 | Actual Obama (D) +1.0 | Difference 1.0 |
| Oct 16-19 | 1,158LV | President (FL) General election | IVR | Poll Obama (D) +1.0 | Actual Obama (D) +2.8 | Difference 1.8 |
| Oct 16-17 | 1,223LV | President (WV) General election | IVR | Poll McCain (R) +8.0 | Actual McCain (R) +13.1 | Difference 5.1 |
| May 17-18 | 1,296LV | President (OR) Democratic primary | IVR | Poll Obama (D) +19.0 | Actual Obama (D) +18.0 | Difference 1.0 |
| May 10-11 | 949LV | President (OR) Democratic primary | IVR | Poll Obama (D) +14.0 | Actual Obama (D) +18.0 | Difference 4.0 |
| May 3-4 | 870LV | President (NC) Democratic primary | IVR | Poll Obama (D) +10.0 | Actual Obama (D) +14.5 | Difference 4.5 |
| May 3-4 | 851LV | President (IN) Democratic primary | IVR | Poll Clinton (D) +5.0 | Actual Clinton (D) +1.1 | Difference 3.9 |
| Apr 26-27 | 1,388LV | President (IN) Democratic primary | IVR | Poll Clinton (D) +8.0 | Actual Clinton (D) +1.1 | Difference 6.9 |
| Apr 26-27 | 1,121LV | President (NC) Democratic primary | IVR | Poll Obama (D) +12.0 | Actual Obama (D) +14.5 | Difference 2.5 |
| Apr 19-20 | 962LV | President (NC) Democratic primary | IVR | Poll Obama (D) +25.0 | Actual Obama (D) +14.5 | Difference 10.5 |
| Apr 19-20 | 2,338LV | President (PA) Democratic primary | IVR | Poll Obama (D) +3.0 | Actual Clinton (D) +9.1 | Difference 12.1 |
| Apr 14-15 | 1,095LV | President (PA) Democratic primary | IVR | Poll Obama (D) +3.0 | Actual Clinton (D) +9.1 | Difference 12.1 |
| Apr 7-8 | 1,124LV | President (PA) Democratic primary | IVR | Poll Clinton (D) +3.0 | Actual Clinton (D) +9.1 | Difference 6.1 |
| Mar 31-Apr 1 | 1,224LV | President (PA) Democratic primary | IVR | Poll Obama (D) +2.0 | Actual Clinton (D) +9.1 | Difference 11.1 |
| Mar 1-2 | 643LV | President (TX) Republican primary | IVR | Poll McCain (R) +12.0 | Actual McCain (R) +13.2 | Difference 1.2 |
| Mar 1-2 | 612LV | President (OH) Republican primary | IVR | Poll McCain (R) +17.0 | Actual McCain (R) +22.2 | Difference 5.2 |
| Mar 1-2 | 1,112LV | President (OH) Democratic primary | IVR | Poll Clinton (D) +9.0 | Actual Clinton (D) +8.7 | Difference 0.3 |
| Mar 1-2 | 755LV | President (TX) Democratic primary | IVR | Poll Clinton (D) +6.0 | Actual Clinton (D) +3.5 | Difference 2.5 |
| Feb 23-24 | 423LV | President (TX) Republican primary | IVR | Poll McCain (R) +16.0 | Actual McCain (R) +13.2 | Difference 2.8 |
| Feb 23-24 | 434LV | President (TX) Democratic primary | IVR | Poll Even | Actual Clinton (D) +3.5 | Difference 3.5 |
| Feb 23-24 | 430LV | President (OH) Republican primary | IVR | Poll McCain (R) +25.0 | Actual McCain (R) +22.2 | Difference 2.8 |
| Feb 23-24 | 600LV | President (OH) Democratic primary | IVR | Poll Clinton (D) +4.0 | Actual Clinton (D) +8.7 | Difference 4.7 |
| Feb 16-17 | 654LV | President (WI) Republican primary | IVR | Poll McCain (R) +11.0 | Actual McCain (R) +17.8 | Difference 6.8 |
| Feb 16-17 | 822LV | President (WI) Democratic primary | IVR | Poll Obama (D) +13.0 | Actual Obama (D) +17.3 | Difference 4.3 |
| Feb 11 | 700LV | President (WI) Republican primary | IVR | Poll McCain (R) +21.0 | Actual McCain (R) +17.8 | Difference 3.2 |
| Feb 11 | 642LV | President (WI) Democratic primary | IVR | Poll Obama (D) +11.0 | Actual Obama (D) +17.3 | Difference 6.3 |
| Feb 3 | 780LV | President (NY) Republican primary | IVR | Poll McCain (R) +25.0 | Actual McCain (R) +24.1 | Difference 0.9 |
| Feb 3 | 747LV | President (NY) Democratic primary | IVR | Poll Clinton (D) +19.0 | Actual Clinton (D) +17.0 | Difference 2.0 |
| Feb 2-3 | 1,263LV | President (GA) Republican primary | IVR | Poll McCain (R) +4.0 | Actual Huckabee (R) +2.3 | Difference 6.3 |
| Feb 2-3 | 1,017LV | President (GA) Democratic primary | IVR | Poll Obama (D) +16.0 | Actual Obama (D) +35.3 | Difference 19.3 |
| Feb 2 | 1,251LV | President (TN) Democratic primary | IVR | Poll Clinton (D) +22.0 | Actual Clinton (D) +13.3 | Difference 8.7 |
| Feb 2 | 1,116LV | President (TN) Republican primary | IVR | Poll McCain (R) +6.0 | Actual Huckabee (R) +2.7 | Difference 8.7 |
| Jan 30 | 862LV | President (GA) Republican primary | IVR | Poll McCain (R) +7.0 | Actual Huckabee (R) +2.3 | Difference 9.3 |
| Jan 30 | 457LV | President (GA) Democratic primary | IVR | Poll Obama (D) +10.0 | Actual Obama (D) +35.3 | Difference 25.3 |
| Jan 29 | 837LV | President (NY) Democratic primary | IVR | Poll Clinton (D) +12.0 | Actual Clinton (D) +17.0 | Difference 5.0 |
| Jan 28 | 1,093LV | President (TN) Republican primary | IVR | Poll Huckabee (R) +4.0 | Actual Huckabee (R) +2.7 | Difference 1.3 |
| Jan 27 | 680LV | President (FL) Republican primary | IVR | Poll Romney (R) +7.0 | Actual McCain (R) +5.0 | Difference 12.0 |
| Jan 24 | 595LV | President (SC) Democratic primary | IVR | Poll Obama (D) +20.0 | Actual Obama (D) +28.9 | Difference 8.9 |
| Jan 22 | 807LV | President (FL) Republican primary | IVR | Poll Romney (R) +3.0 | Actual McCain (R) +5.0 | Difference 8.0 |
| Jan 21 | 580LV | President (SC) Democratic primary | IVR | Poll Obama (D) +16.0 | Actual Obama (D) +28.9 | Difference 12.9 |
| Jan 16 | 772LV | President (SC) Republican primary | IVR | Poll McCain (R) +8.0 | Actual McCain (R) +3.3 | Difference 4.7 |
| Jan 11-12 | 1,272LV | President (SC) Republican primary | IVR | Poll McCain (R) +7.0 | Actual McCain (R) +3.3 | Difference 3.7 |
| Jan 11-12 | 510LV | President (SC) Democratic primary | IVR | Poll Obama (D) +13.0 | Actual Obama (D) +28.9 | Difference 15.9 |
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