A/B
| Polls analyzed | 13 |
| Races called correctly | 81% |
| Most recent cycle | 2020 |
| Affiliated with professional polling organization (NCPP/AAPOR/Roper) | Yes |
How accurate are the polls from Marquette University Law School?
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 |
|---|---|---|---|---|---|---|
| Oct 21-25 | 749LV | President (WI) General election | Live Phone | Poll Biden (D) +5.0 | Actual Biden (D) +0.6 | Difference 4.4 |
| Mar 24-29 | 394LV | President (WI) Democratic primary | Live Phone | Poll Biden (D) +28.0 | Actual Biden (D) +31.1 | Difference 3.1 |
2018
| Dates | Sample | Race | Methodology | Poll margin | Election margin | Difference |
|---|---|---|---|---|---|---|
| Oct 24-28 | 1,154LV | Governor (WI) General election | Live Phone | Poll Even | Actual Evers (D) +1.1 | Difference 1.1 |
| Oct 24-28 | 1,154LV | Senate (WI) General election | Live Phone | Poll Baldwin (D) +11.0 | Actual Baldwin (D) +10.8 | Difference 0.2 |
2016
| Dates | Sample | Race | Methodology | Poll margin | Election margin | Difference |
|---|---|---|---|---|---|---|
| Oct 26-31 | 1,255LV | President (WI) General election | Live Phone | Poll Clinton (D) +6.0 | Actual Trump (R) +0.8 | Difference 6.8 |
| Oct 26-31 | 1,255LV | Senate (WI) General election | Live Phone | Poll Feingold (D) +1.0 | Actual Johnson (R) +3.4 | Difference 4.4 |
| Mar 24-28 | 405LV | President (WI) Democratic primary | Live Phone | Poll Sanders (D) +4.3 | Actual Sanders (D) +13.5 | Difference 9.2 |
| Mar 24-28 | 471LV | President (WI) Republican primary | Live Phone | Poll Cruz (R) +9.2 | Actual Cruz (R) +13.2 | Difference 4.0 |
2014
| Dates | Sample | Race | Methodology | Poll margin | Election margin | Difference |
|---|---|---|---|---|---|---|
| Oct 23-26 | 1,164LV | Governor (WI) General election | Live Phone | Poll Walker (R) +7.0 | Actual Walker (R) +5.7 | Difference 1.3 |
2012
| Dates | Sample | Race | Methodology | Poll margin | Election margin | Difference |
|---|---|---|---|---|---|---|
| Oct 25-28 | 1,243LV | Senate (WI) General election | Live Phone | Poll Baldwin (D) +4.0 | Actual Baldwin (D) +5.5 | Difference 1.5 |
| Oct 25-28 | 1,243LV | President (WI) General election | Live Phone | Poll Obama (D) +8.0 | Actual Obama (D) +6.8 | Difference 1.2 |
| May 23-26 | 600LV | Governor (WI) Special election | Live Phone | Poll Walker (R) +7.0 | Actual Walker (R) +6.8 | Difference 0.2 |
| Mar 22-25 | 350LV | President (WI) Republican primary | Live Phone | Poll Romney (R) +8.0 | Actual Romney (R) +7.2 | Difference 0.8 |
Show all
Comments