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

Data for Progress

Method: text/web mix · scored polls from 2019 to 2024

Versus the field
−0.04
points of error vs. other pollsters in the same races, after shrinkage (unshrunk +0.07; 45% own record)
Average miss
4.9
points on the margin, as published
House effect
R+0.7
lean relative to other polls of the same races
Scored polls
155
79 races · 10 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
201912.31.0R+2.9
2020795.9+0.7R+0.6
202116.9+3.4D+3.6
2022623.70.8R+2.3
202313.10.2R+4.5
2024114.6+1.0D+0.8
This cycle

2026 polls in the database

EndedRaceMatchupAs published
Aug 15, 2026Senate MSScott Colom v. Cindy Hyde-SmithR+6
Aug 4, 2026Senate AKMary Peltola v. Dan SullivanD+6
Jun 30, 2026MI-7William Lawrence v. Tom BarrettD+2
Jun 22, 2026Senate MIAbdul El-Sayed v. Mike RogersD+1
Jun 21, 2026Generic ballotD+7
May 18, 2026Generic ballotD+8
Oct 23, 2025Senate AKMary Peltola v. Dan SullivanD+1
Jul 27, 2025Senate AKMary Peltola v. Dan SullivanR+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 31, 20242024 Senate, PAD+4R+0.2D+4.2D+4.7
Oct 31, 20242024 President, PAD+2R+1.7D+3.7D+2.5
Oct 31, 20242024 President, GAD+1R+2.2D+3.2D+1.5
Oct 30, 20242024 Senate, NVD+7D+1.6D+5.4D+5.9
Oct 30, 20242024 President, NVD+2R+3.1D+5.1D+3.6
Oct 30, 20242024 Senate, AZD+5D+2.4D+2.6D+5.0
Oct 30, 20242024 President, AZR+1R+5.5D+4.5D+4.7
Oct 3, 20242024 PresidentD+3R+1.5D+4.5D+3.7
Sep 17, 20242024 PresidentD+5R+1.5D+6.5D+3.7
Sep 13, 20242024 Generic ballotD+3R+2.7D+5.7D+3.3
Sep 13, 20242024 PresidentD+4R+1.5D+5.5D+3.7
Nov 2, 20232023 Governor, KYD+2D+5.1R+3.1D+1.5
Dec 5, 20222022 Senate, GAD+2D+2.8R+0.8D+0.4
Nov 6, 20222022 Governor, NVR+2R+1.5R+0.5D+0.6
Nov 6, 20222022 Governor, GAR+9R+7.5R+1.5D+0.5
Nov 6, 20222022 Senate, ORD+14D+14.9R+0.9D+2.7
Nov 6, 20222022 Senate, NCR+6R+3.2R+2.8D+0.6
Nov 6, 20222022 Senate, GAR+1D+1.0R+2.0D+0.3
Nov 6, 20222022 Senate, FLR+12R+16.4D+4.4D+10.0
Nov 6, 20222022 Senate, AZR+1D+4.9R+5.9R+0.8
Nov 6, 20222022 Senate, NVR+2D+0.8R+2.8R+0.6
Nov 6, 20222022 Governor, ORD+4D+3.4D+0.6R+3.3
Nov 6, 20222022 Governor, FLR+15R+19.4D+4.4D+10.2
Nov 6, 20222022 Generic ballotR+4R+2.6R+1.4D+3.0
Nov 6, 20222022 Governor, AZR+4D+0.7R+4.7R+1.5
Nov 5, 20222022 Senate, COD+7D+14.6R+7.6R+4.9
Nov 5, 20222022 Governor, COD+12D+19.4R+7.3R+4.2
Nov 5, 20222022 Governor, NHR+18R+15.5R+2.5Even
Nov 5, 20222022 Senate, OHR+10R+6.1R+3.9D+4.5
Nov 5, 20222022 Senate, NHD+3D+9.1R+6.1R+3.6
Nov 5, 20222022 Governor, WIR+2D+3.4R+5.4R+3.0
Nov 5, 20222022 Governor, OHR+24R+25.0D+1.0D+6.2
Nov 5, 20222022 Senate, WIR+6R+1.0R+5.0R+1.8
Oct 31, 20222022 Generic ballotR+4R+2.6R+1.4D+3.0
Oct 28, 20222022 Governor, NYD+12D+7.3D+4.7D+1.1
Oct 28, 20222022 Senate, NYD+17D+14.0D+3.0D+3.6
Oct 27, 20222022 Generic ballotR+4R+2.6R+1.4D+3.0
Oct 26, 20222022 House, VT-1D+25D+34.8R+9.8D+3.2
Oct 26, 20222022 Governor, VTR+41R+47.0D+6.0D+30.0
Oct 26, 20222022 Senate, VTD+31D+40.4R+9.4R+6.4
Oct 23, 20222022 Governor, FLR+12R+19.4D+7.4D+10.2
Oct 23, 20222022 Senate, FLR+7R+16.4D+9.4D+10.0
Oct 22, 20222022 Governor, WIR+1D+3.4R+4.4R+3.0
Oct 22, 20222022 Senate, WIR+5R+1.0R+4.0R+1.8
Oct 19, 20222022 Senate, NHD+6D+9.1R+3.1R+3.6
Oct 19, 20222022 Governor, NVR+1R+1.5D+0.5D+0.6
Oct 19, 20222022 Senate, NVR+1D+0.8R+1.8R+0.6
Oct 19, 20222022 Governor, NHR+13R+15.5D+2.5Even
Oct 18, 20222022 Governor, ORR+1D+3.4R+4.4R+3.3
Oct 18, 20222022 Generic ballotR+3R+2.6R+0.4D+3.0
Oct 18, 20222022 Senate, ORD+11D+14.9R+3.9D+2.7
Oct 17, 20222022 Governor, AZR+4D+0.7R+4.7R+1.5
Oct 17, 20222022 Governor, GAR+10R+7.5R+2.5D+0.5
Oct 17, 20222022 Senate, GAD+1D+1.0EvenD+0.3
Oct 17, 20222022 Senate, AZEvenD+4.9R+4.9R+0.8
Oct 12, 20222022 Senate, OHR+3R+6.1D+3.1D+4.5
Oct 12, 20222022 Governor, OHR+19R+25.0D+6.0D+6.2
Oct 6, 20222022 Senate, COD+9D+14.6R+5.6R+4.9
Oct 6, 20222022 Governor, COD+17D+19.4R+2.4R+4.2
Oct 3, 20222022 Generic ballotR+2R+2.6D+0.6D+3.0