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

Moore Information Group

Method: live phone · scored polls from 1998 to 2022 · 76% of scored polls were for a party or campaign

Versus the field
+0.11
points of error vs. other pollsters in the same races, after shrinkage (unshrunk +0.63; 15% own record)
Average miss
6.8
points on the margin, as published
House effect
R+0.1
lean relative to other polls of the same races
Scored polls
49
39 races · 4 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
1998210.6+4.1Even
200056.31.1R+6.0
200232.85.7D+0.1
200443.7+0.5R+3.4
200628.3+3.5D+1.8
200846.8+3.4R+2.0
2010310.1+0.1R+1.0
201245.00.9R+2.2
201459.9+3.5D+4.9
201665.82.2D+1.5
2018112.2+6.2R+2.9
202037.52.6D+1.8
202276.6+3.1R+0.1
This cycle

2026 polls in the database

EndedRaceMatchupAs published
Aug 25, 2026Senate MTAlani Bankhead v. Kurt AlmeR+25
Aug 20, 2026AZ-2Jonathan Nez v. Eli CraneR+11
Aug 13, 2026Senate IDTodd Achilles v. James RischR+34
Jun 27, 2026Senate NHChris Pappas v. John SununuD+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
Nov 5, 20222022 Senate, WAR-ALIGNEDEvenD+14.5R+14.9R+6.0
Nov 2, 20222022 Senate, GAR-ALIGNEDR+5D+1.0R+6.0D+0.2
Oct 25, 20222022 House, IA-3R-ALIGNEDR+2R+0.7R+1.3R+3.2
Oct 25, 20222022 Senate, GAR-ALIGNEDR+4D+1.0R+5.0D+0.2
Oct 22, 20222022 Senate, WAR-ALIGNEDEvenD+14.5R+14.5R+6.0
Oct 11, 20222022 Senate, GAR-ALIGNEDR+2D+1.0R+3.0D+0.2
Sep 25, 20222022 House, IA-3R-ALIGNEDR+2R+0.7R+1.3R+3.2
Oct 14, 20202020 Senate, ALR-ALIGNEDR+15R+20.4D+5.4D+9.8
Oct 14, 20202020 President, ALR-ALIGNEDR+17R+25.5D+8.5D+5.6
Sep 22, 20202020 Senate, MER-ALIGNEDEvenR+8.6D+8.6D+13.2
Oct 8, 20182018 House, NV-4R-ALIGNEDR+4D+8.2R+12.2R+5.4
Oct 5, 20162016 President, AKR-ALIGNEDR+3R+14.7D+11.7D+11.0
Oct 5, 20162016 Senate, AKR-ALIGNEDR+40R+32.7R+7.3D+1.9
Oct 4, 20162016 House, AZ-1R-ALIGNEDD+3D+7.3R+4.3R+2.7
Oct 2, 20162016 House, MT-1R-ALIGNEDR+11R+15.6D+4.6D+2.7
Sep 14, 20162016 President, AKR-ALIGNEDR+8R+14.7D+6.7D+11.0
Sep 14, 20162016 Senate, AKR-ALIGNEDR+33R+32.7R+0.3D+1.9
Oct 27, 20142014 Senate, AKR-ALIGNEDR+4R+2.1R+1.9D+0.5
Oct 10, 20142014 House, WA-1R+21D+10.1R+31.1
Oct 7, 20142014 Governor, AZD+3R+11.8D+14.8D+6.5
Oct 5, 20142014 House, WA-1D+9D+10.1R+1.1
Sep 23, 20142014 House, CA-3R-ALIGNEDD+6D+5.4D+0.6
Oct 8, 20122012 House, CA-21R-ALIGNEDR+20R+15.5R+4.5D+7.6
Sep 25, 20122012 President, AZR+4R+9.1D+5.1D+3.5
Sep 25, 20122012 Senate, AZR+3R+3.0EvenD+1.0
Jan 11, 20122012 House, OR-1R-ALIGNEDD+4D+14.2R+10.2R+5.2
Oct 12, 20102010 Governor, AZR-ALIGNEDR+17R+11.9R+5.1R+0.2
Oct 11, 20102010 House, OR-5R-ALIGNEDR+4D+5.3R+9.3R+1.8
Oct 5, 20102010 House, ID-1R-ALIGNEDD+6R+9.7D+15.7D+18.0
Oct 27, 20082008 Senate, ORR-ALIGNEDR+4D+3.4R+7.4R+1.3
Oct 27, 20082008 President, ORR-ALIGNEDD+14D+16.3R+2.3R+4.3
Sep 24, 20082008 Senate, SDD+18D+25.0R+7.0R+1.1
Sep 10, 20082008 President, ORD+6D+16.3R+10.3R+4.3
Sep 15, 20062006 Governor, OREvenD+8.0R+8.0R+2.4
Apr 29, 20062006 House, CA-50R-ALIGNEDD+4R+4.6D+8.6D+3.4
Oct 25, 20042004 President, ORD+2D+4.2R+2.2D+0.2
Oct 5, 20042004 President, WIR+2D+0.4R+2.4R+3.0
Oct 3, 20042004 President, WAD+2D+7.2R+5.2D+0.7
Sep 19, 20042004 President, WAD+2D+7.2R+5.2D+0.7
Oct 15, 20022002 Governor, AKR-ALIGNEDR+16R+15.1R+0.9D+16.2
Sep 24, 20022002 House, UT-2R-ALIGNEDD+8D+0.7D+7.3D+4.7
Sep 22, 20022002 Senate, ORR-ALIGNEDR+17R+16.6R+0.4R+3.6
Oct 17, 20002000 House, MO-2R-ALIGNEDR+2R+12.9D+10.9
Oct 16, 20002000 House, WA-2R-ALIGNEDR+4D+4.1R+8.1D+1.9
Oct 11, 20002000 Senate, NER-ALIGNEDR+2D+2.2R+4.2D+9.3
Sep 20, 20002000 Senate, NER-ALIGNEDR+1D+2.2R+3.2D+9.3
Sep 20, 20002000 President, NER-ALIGNEDR+24R+29.0D+5.0D+8.7
Oct 14, 19981998 House, MT-1R-ALIGNEDR+15R+8.6R+6.4R+6.4
Sep 24, 19981998 Senate, WAR-ALIGNEDD+2D+16.8R+14.8R+7.1