Pollster Ratings - Marketing Resource Group (MRG)

Marketing Resource Group (MRG)

Pollsters with a relatively small number of polls now receive a provisional rating rather than a precise letter grade.

B/C

Polls analyzed	10
Races called correctly	30%
Most recent cycle	2018
Affiliated with professional polling organization (NCPP/AAPOR/Roper)	No

Polls conducted within 21 days of an election (based on the poll’s median date) are used to determine the pollster’s grade.

Key

A = Adults

RV = Registered voters

V = Voters

LV = Likely voters

Dates	Sample	Race	Methodology	Poll margin	Election margin	Difference
Oct 14-18	600LV	Governor (MI) General election	Live Phone	Poll Whitmer (D) +14.0	Actual Whitmer (D) +9.6	Difference 4.4
Oct 14-18	600LV	Senate (MI) General election	Live Phone	Poll Stabenow (D) +16.0	Actual Stabenow (D) +6.5	Difference 9.5

2016

Dates	Sample	Race	Methodology	Poll margin	Election margin	Difference
Oct 16-19	600LV	President (MI) General election	Live Phone	Poll Clinton (D) +5.0	Actual Trump (R) +0.2	Difference 5.2
Feb 22-27	217LV	President (MI) Republican primary	Live Phone	Poll Trump (R) +15.0	Actual Trump (R) +11.9	Difference 3.1
Feb 22-27	218LV	President (MI) Democratic primary	Live Phone	Poll Clinton (D) +20.0	Actual Sanders (D) +1.4	Difference 21.4

Dates	Sample	Race	Methodology	Poll margin	Election margin	Difference
Feb 13-14	800LV	President (MI) Republican primary	Live Phone	Poll Santorum (R) +10.0	Actual Romney (R) +3.2	Difference 13.2

Dates	Sample	Race	Methodology	Poll margin	Election margin	Difference
Oct 24-26	400LV	House (MI-7) General election	Live Phone	Poll Schauer (D) +7.0	Actual Walberg (R) +4.8	Difference 11.8

2000

Dates	Sample	Race	Methodology	Poll margin	Election margin	Difference
Oct 24-26	500LV	Senate (MI) General election	Live Phone	Poll Abraham (R) +8.0	Actual Stabenow (D) +1.6	Difference 9.6
Oct 24-26	500LV	President (MI) General election	Live Phone	Poll Bush (R) +6.0	Actual Gore (D) +5.1	Difference 11.1
Feb 7-9	400LV	President (MI) Republican primary	Live Phone	Poll Bush (R) +1.0	Actual McCain (R) +7.9	Difference 8.9

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