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

Siena College

Method: live phone · scored polls from 2002 to 2024

Versus the field
−0.21
points of error vs. other pollsters in the same races, after shrinkage (unshrunk −0.69; 32% own record)
Average miss
6.9
points on the margin, as published
House effect
D+0.6
lean relative to other polls of the same races
Scored polls
143
76 races · 15 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
200224.3+0.8R+3.5
200422.55.0D+6.4
200689.9+2.7R+1.4
2008310.9+1.7R+4.0
2009719.25.2D+5.9
2010215.55.0D+6.7
201148.5+1.8D+0.5
2012217.6+1.1D+0.1
2014165.90.8R+3.3
2016164.02.0R+0.9
201897.1+1.1R+0.7
202046.9+0.1D+2.3
2022235.70.2D+2.1
202475.1+1.4D+2.5
This cycle

2026 polls in the database

EndedRaceMatchupAs published
Sep 11, 2026Governor TXGina Hinojosa v. Greg AbbottD+4
Sep 11, 2026Senate TXJames Talarico v. Ken PaxtonD+6
Aug 6, 2026Governor NYKathy Hochul v. Bruce BlakemanD+10
Jul 30, 2026Governor TXGina Hinojosa v. Greg AbbottR+1
Jul 30, 2026Senate TXJames Talarico v. Ken PaxtonD+4
Jun 26, 2026Governor NYKathy Hochul v. Bruce BlakemanD+25
Jun 23, 2026Governor NYKathy Hochul v. Bruce BlakemanD+20
Jun 4, 2026Governor TXGina Hinojosa v. Greg AbbottR+6
Jun 4, 2026Senate TXJames Talarico v. Ken PaxtonEven
Apr 30, 2026Governor NYKathy Hochul v. Bruce BlakemanD+16
Mar 26, 2026Governor NYKathy Hochul v. Bruce BlakemanD+13
Feb 26, 2026Governor NYKathy Hochul v. Bruce BlakemanD+20
Jan 28, 2026Governor NYKathy Hochul v. Bruce BlakemanD+26
Dec 12, 2025Governor NYKathy Hochul v. Bruce BlakemanD+25
Jun 26, 2025Governor NYKathy Hochul v. Bruce BlakemanD+25
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 17, 20242024 Senate, NYD+26D+18.3D+7.7D+3.4
Oct 17, 20242024 President, NYD+18D+12.6D+5.4D+4.9
Oct 17, 20242024 House, NY-4D+12D+2.3D+9.7R+3.3
Oct 17, 20242024 House, NY-1R+3R+10.4D+7.4D+5.5
Sep 16, 20242024 Senate, NYD+23D+18.3D+4.7D+3.4
Sep 16, 20242024 President, NYD+13D+12.6R+0.1D+4.9
Feb 6, 20242024 House, NY-3D+4D+3.6D+0.4R+1.2
Nov 1, 20222022 Senate, FLR+8R+16.4D+8.4D+9.9
Nov 1, 20222022 Governor, FLR+12R+19.4D+7.4D+10.1
Nov 1, 20222022 House, NY-19D+5R+1.9D+6.9R+3.8
Nov 1, 20222022 House, NY-22D+4D+6.1R+2.1R+8.5
Oct 31, 20222022 Governor, WID+2D+3.4R+1.4R+3.4
Oct 31, 20222022 Senate, WIR+2R+1.0R+1.0R+2.0
Oct 19, 20222022 Governor, TXR+9R+10.9D+1.9D+3.0
Oct 19, 20222022 Governor, OHR+24R+25.0D+1.0D+6.4
Oct 19, 20222022 Senate, OHEvenR+6.1D+6.1D+3.9
Oct 14, 20222022 Senate, NYD+20D+14.0D+6.0D+3.4
Oct 14, 20222022 Governor, NYD+11D+7.3D+3.7D+1.0
Sep 30, 20222022 House, NY-11R+6R+19.2D+13.2
Sep 28, 20222022 House, NY-22R+5D+6.1R+11.1R+8.5
Sep 28, 20222022 House, NY-19D+5R+1.9D+6.9R+3.8
Sep 25, 20222022 Governor, NYD+17D+7.3D+9.7D+1.0
Sep 25, 20222022 Senate, FLR+7R+16.4D+9.4D+9.9
Sep 25, 20222022 Governor, FLR+8R+19.4D+11.4D+10.1
Sep 25, 20222022 Senate, NYD+19D+14.0D+5.0D+3.4
Sep 22, 20222022 Senate, OHD+3R+6.1D+9.1D+3.9
Sep 22, 20222022 Governor, OHR+23R+25.0D+2.0D+6.4
Sep 18, 20222022 Governor, TXR+7R+10.9D+3.9D+3.0
Sep 15, 20222022 Senate, WID+1R+1.0D+2.0R+2.0
Sep 15, 20222022 Governor, WID+5D+3.4D+1.6R+3.4
Oct 22, 20202020 House, NY-24EvenR+2.4D+2.4D+1.1
Oct 4, 20202020 House, NY-22D+9R+1.4D+10.4
Sep 29, 20202020 President, NYD+32D+22.1D+9.9D+8.3
Sep 29, 20202020 House, NY-24D+3R+2.4D+4.9D+1.1
Nov 1, 20182018 Governor, NYD+13D+24.0R+11.0R+3.0
Nov 1, 20182018 Senate, NYD+23D+33.4R+10.4R+6.9
Oct 22, 20182018 House, NY-24R+14D+0.9R+14.9
Oct 18, 20182018 House, NY-22D+1D+2.3R+1.3R+4.9
Oct 16, 20182018 House, NY-19R+1D+8.1R+9.1R+5.9
Oct 11, 20182018 House, NY-27R+3D+4.8R+7.8R+9.3
Oct 8, 20182018 House, NY-25D+17D+21.0R+4.0
Sep 27, 20182018 Governor, NYD+20D+24.0R+4.0R+3.0
Sep 27, 20182018 Senate, NYD+32D+33.4R+1.4R+6.9
Nov 3, 20162016 Senate, NYD+42D+42.0EvenD+2.5
Nov 3, 20162016 President, NYD+17D+24.0R+7.0R+3.6
Nov 2, 20162016 House, NY-19R+6R+3.2R+2.8D+4.3
Nov 1, 20162016 House, NY-22R+4R+3.8R+0.2
Oct 31, 20162016 House, NY-3D+7D+11.7R+4.7R+3.2
Oct 29, 20162016 House, NY-1R+21R+9.8R+11.2
Oct 18, 20162016 House, NY-24R+23R+13.2R+9.8
Oct 15, 20162016 Senate, NYD+39D+42.0R+3.0D+2.5
Oct 15, 20162016 President, NYD+24D+24.0EvenR+3.6
Oct 2, 20162016 House, NY-3D+16D+11.7D+4.3R+3.2
Oct 1, 20162016 House, NY-1R+15R+9.8R+5.2
Sep 26, 20162016 House, NY-24R+19R+13.2R+5.8
Sep 23, 20162016 House, NY-22R+5R+3.8R+1.2
Sep 21, 20162016 House, NY-19R+1R+3.2D+2.2D+4.3
Sep 13, 20162016 Senate, NYD+46D+42.0D+4.0D+2.5
Sep 13, 20162016 President, NYD+21D+24.0R+3.0R+3.6
Oct 28, 20142014 House, NY-1R+5R+4.9R+0.1D+8.8