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

DHM Research

Method: live phone mix · scored polls from 1998 to 2022

Versus the field
−0.08
points of error vs. other pollsters in the same races, after shrinkage (unshrunk −0.42; 8% own record). A thin record: too few scored polls to say much.
Average miss
4.4
points on the margin, as published
House effect
None
lean relative to other polls of the same races
Scored polls
27
17 races · 1 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
1998221.7+12.6
200020.64.5D+2.4
200242.8+0.7R+1.8
200422.02.4R+0.1
200622.02.3D+1.7
200844.3+0.1D+0.9
201023.0+1.1D+0.2
201215.10.6D+0.8
201412.12.7D+5.0
201643.9+0.1R+0.8
201811.42.7D+0.5
202014.11.7R+7.5
202214.9+0.4R+1.9
This cycle

2026 polls in the database

EndedRaceMatchupAs published
Sep 9, 2026Governor ORTina Kotek v. Christine DrazanR+2
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
Sep 24, 20222022 Governor, ORR+2D+3.4R+4.9R+3.0
Sep 8, 20202020 President, ORD+12D+16.1R+4.1D+3.4
Oct 11, 20182018 Governor, ORD+5D+6.4R+1.4R+1.9
Oct 27, 20162016 Governor, ORD+9D+7.2D+1.8D+2.3
Oct 27, 20162016 President, ORD+7D+11.0R+4.0R+0.9
Oct 10, 20162016 Governor, ORD+13D+7.2D+5.8D+2.3
Oct 10, 20162016 President, ORD+7D+11.0R+4.0R+0.9
Oct 9, 20142014 Senate, ORD+21D+18.9D+2.1R+2.8
Oct 27, 20122012 President, ORD+7D+12.1R+5.1R+5.8
Oct 28, 20102010 Governor, ORD+3D+1.5D+1.5R+1.7
Oct 24, 20102010 Governor, ORR+3D+1.5R+4.5R+1.7
Oct 24, 20082008 President, ORD+19D+16.3D+2.7R+4.6
Oct 24, 20082008 Senate, ORD+5D+3.4D+1.6R+1.5
Sep 13, 20082008 Senate, ORR+3D+3.4R+6.4R+1.5
Sep 13, 20082008 President, ORD+10D+16.3R+6.3R+4.6
Oct 30, 20062006 Governor, ORD+7D+8.0R+1.0R+3.6
Sep 24, 20062006 Governor, ORD+5D+8.0R+3.0R+3.6
Oct 26, 20042004 President, ORD+6D+4.2D+1.8R+0.1
Sep 26, 20042004 President, ORD+2D+4.2R+2.2R+0.1
Oct 27, 20022002 Senate, ORR+19R+16.6R+2.4R+0.1
Oct 27, 20022002 Governor, ORD+6D+2.9D+3.1D+2.5
Oct 4, 20022002 Governor, ORD+4D+2.9D+1.1D+2.5
Oct 4, 20022002 Senate, ORR+21R+16.6R+4.4R+0.1
Oct 27, 20002000 President, ORD+1D+0.4D+0.6R+1.8
Sep 8, 20002000 President, ORD+1D+0.4D+0.6R+1.8
Oct 3, 19981998 Governor, ORD+53D+34.4D+18.6
Oct 3, 19981998 Senate, ORD+52D+27.3D+24.7