House Effects
Monday, September 21, 202643 days until Election Day, November 3, 2026
Pollster record · how records are scored

EPIC-MRA

Method: live phone · scored polls from 1998 to 2024

Versus the field
−0.17
points of error vs. other pollsters in the same races, after shrinkage (unshrunk −0.88; 20% own record)
Average miss
5.2
points on the margin, as published
House effect
D+0.5
lean relative to other polls of the same races
Scored polls
98
38 races · 5 polls this cycle
By cycle

Record over time

Error relative to other pollsters in the same races (negative is better), and lean relative to them. Cycles with fewer than 10 scored polls are grayed: a handful of polls says little.

CyclePollsAvg. missVersus the fieldLean vs. field
199817.61.1R+4.3
2000187.0+0.7Even
2002106.70.7R+0.3
200421.61.5D+1.5
2006114.7+0.5R+1.1
200875.92.5D+1.7
2010145.30.6D+2.7
201273.52.7D+2.5
201462.71.6D+0.9
201646.5+0.1D+0.3
201845.8+1.1R+0.2
202084.51.1R+0.5
202241.75.2D+6.7
202424.5+1.4D+0.6
This cycle

2026 polls in the database

EndedRaceMatchupAs published
Aug 28, 2026Governor MIJocelyn Benson v. John JamesD+4
Aug 28, 2026Senate MIAbdul El-Sayed v. Mike RogersD+4
Jul 31, 2026Governor MIJocelyn Benson v. John JamesD+9
Jul 31, 2026Senate MIAbdul El-Sayed v. Mike RogersR+3
Nov 11, 2025Governor MIJocelyn Benson v. John JamesR+1
The receipts

Most recent scored polls

Polls in the final two months of a race with a certified result. “Others” is the average miss of other pollsters in the same race.

Poll dateRacePollResultMissOthers' miss
Oct 28, 20242024 Senate, MID+5D+0.3D+4.7D+4.1
Oct 28, 20242024 President, MID+3R+1.4D+4.4D+3.6
Nov 1, 20222022 Governor, MID+11D+10.5D+0.5R+5.0
Oct 12, 20222022 Governor, MID+11D+10.5D+0.5R+5.0
Sep 19, 20222022 Governor, MID+16D+10.5D+5.5R+5.0
Sep 13, 20222022 Governor, MID+11D+10.5D+0.5R+5.0
Oct 28, 20202020 President, MID+7D+2.8D+4.2D+4.4
Oct 28, 20202020 Senate, MID+5D+1.7D+3.3D+5.5
Oct 19, 20202020 President, MID+9D+2.8D+6.2D+4.4
Oct 19, 20202020 Senate, MID+6D+1.7D+4.3D+5.5
Oct 12, 20202020 Senate, MID+6D+1.7D+4.3D+5.5
Oct 12, 20202020 President, MID+9D+2.8D+6.2D+4.4
Sep 15, 20202020 Senate, MID+4D+1.7D+2.3D+5.5
Sep 15, 20202020 President, MID+8D+2.8D+5.2D+4.4
Oct 23, 20182018 Senate, MID+7D+6.5D+0.5D+6.2
Oct 23, 20182018 Governor, MID+5D+9.6R+4.6R+0.2
Sep 25, 20182018 Senate, MID+23D+6.5D+16.5D+6.2
Sep 25, 20182018 Governor, MID+8D+9.6R+1.6R+0.2
Nov 2, 20162016 President, MID+4R+0.2D+4.2D+6.2
Oct 23, 20162016 President, MID+7R+0.2D+7.2D+6.2
Oct 2, 20162016 President, MID+11R+0.2D+11.2D+6.2
Sep 12, 20162016 President, MID+3R+0.2D+3.2D+6.2
Oct 27, 20142014 Senate, MID+15D+13.3D+1.7R+6.4
Oct 27, 20142014 Governor, MIR+2R+4.1D+2.1D+1.6
Oct 18, 20142014 Governor, MIR+8R+4.1R+3.9D+1.6
Oct 18, 20142014 Senate, MID+11D+13.3R+2.3R+6.4
Sep 27, 20142014 Senate, MID+9D+13.3R+4.3R+6.4
Sep 27, 20142014 Governor, MIR+6R+4.1R+1.9D+1.6
Oct 28, 20122012 President, MID+6D+9.5R+3.5R+3.4
Oct 28, 20122012 Senate, MID+21D+20.8D+0.2R+9.1
Oct 17, 20122012 President, MID+6D+9.5R+3.5R+3.4
Oct 5, 20122012 President, MID+3D+9.5R+6.5R+3.4
Oct 5, 20122012 Senate, MID+20D+20.8R+0.8R+9.1
Sep 10, 20122012 Senate, MID+11D+20.8R+9.8R+9.1
Sep 10, 20122012 President, MID+10D+9.5D+0.5R+3.4
Oct 25, 20102010 Governor, MIR+18R+18.2D+0.2D+1.5
Oct 20, 20102010 House, IN-7D+13D+21.1R+8.1
Oct 20, 20102010 House, IN-2D+5D+1.3D+3.7
Oct 20, 20102010 Senate, INR+18R+14.6R+3.4R+4.9
Oct 18, 20102010 House, MI-1R+2R+11.1D+9.1D+3.7
Oct 18, 20102010 House, MI-3R+9R+22.2D+13.2D+7.1
Oct 18, 20102010 House, MI-15D+17D+16.7D+0.3R+9.2
Oct 16, 20102010 House, MI-7D+6R+4.8D+10.8D+3.3
Oct 16, 20102010 House, MI-9D+5D+2.5D+2.5R+5.2
Oct 5, 20102010 Governor, MIR+20R+18.2R+1.8D+1.5
Oct 2, 20102010 House, IN-7D+17D+21.1R+4.1
Oct 2, 20102010 House, IN-2D+9D+1.3D+7.7
Sep 30, 20102010 Senate, INR+18R+14.6R+3.4R+4.9
Sep 11, 20102010 Governor, MIR+24R+18.2R+5.8D+1.5
Oct 27, 20082008 Senate, MID+18D+28.8R+10.8R+5.2
Oct 27, 20082008 President, MID+12D+16.5R+4.5R+9.4
Oct 21, 20082008 President, MID+14D+16.5R+2.5R+9.4
Oct 21, 20082008 Senate, MID+28D+28.8R+0.8R+5.2
Sep 21, 20082008 President, MID+10D+16.5R+6.5R+9.4
Sep 16, 20082008 Senate, MID+28D+28.8R+0.8R+5.2
Sep 16, 20082008 President, MID+1D+16.5R+15.5R+9.4
Oct 31, 20062006 Senate, MID+13D+15.7R+2.7R+1.1
Oct 31, 20062006 Governor, MID+9D+14.1R+5.1R+4.4
Oct 28, 20062006 Senate, MID+14D+15.7R+1.7R+1.1
Oct 28, 20062006 Governor, MID+10D+14.1R+4.1R+4.4