Siena College

Historical accuracy is measured against certified results. Current-cycle records come from the canonical, deduplicated archive and do not by themselves change the sealed forecast.

Historical polls: 57
Mean absolute error: 4.79percentage points
Historical bias: R+0.22
Represented cycles: 132002–2022
Current archive: 5canonical records
History span: Oct 17, 2002through Oct 31, 2022

Identity

Known names and relationships

Known aliases: No additional reviewed aliases
Organization type: Single canonical organization
Cycles represented: 2002 · 2004 · 2006 · 2008 · 2009 · 2010 · 2011 · 2012 · 2014 · 2016 · 2018 · 2020 · 2022

57 eligible historical polls across 13 represented cycles passed the published history identity checks. Historical bias is descriptive and is kept separate from sponsor or client affiliation.

Canonical 2025–2026 archive

Current-cycle records

Archive source date 2026-09-09 · bundled copy. Archive records may be newer than the sealed forecast; inclusion here does not mean the forecast uses them.

5 shown · 5 total

Governor

New York · Governor

Hochul +25

Kathy Hochul 44% · Bruce Blakeman 19%

Field dates: Jun 23–Jun 26, 2026
Sample: 800 RV
Sponsor / client: Not reported in archive
Partisan sponsorship: No partisan sponsorship flag

Governor

New York · Governor

Hochul +13

Kathy Hochul 47% · Bruce Blakeman 34%

Field dates: Mar 23–Mar 26, 2026
Sample: 804 RV
Sponsor / client: Not reported in archive
Partisan sponsorship: No partisan sponsorship flag

Governor

New York · Governor

Hochul +20

Kathy Hochul 51% · Bruce Blakeman 31%

Field dates: Feb 23–Feb 26, 2026
Sample: 805 RV
Sponsor / client: Not reported in archive
Partisan sponsorship: No partisan sponsorship flag

Governor

New York · Governor

Hochul +26

Kathy Hochul 54% · Bruce Blakeman 28%

Field dates: Jan 26–Jan 28, 2026
Sample: 802 RV
Sponsor / client: Not reported in archive
Partisan sponsorship: No partisan sponsorship flag

Governor

New York · Governor

Hochul +25

Kathy Hochul 50% · Bruce Blakeman 25%

Field dates: Dec 8–Dec 12, 2025
Sample: 801 RV
Sponsor / client: Not reported in archive
Partisan sponsorship: No partisan sponsorship flag

See this pollster in the Full Poll Archive →

Certified-result history

Eligible historical observations

50 shown · 57 total

Cycle	Race	Type	Field end	Sample	Poll	Result	Error
2022	2022_Sen-G_FL	Sen-G	2022-10-31	659	R+8.0	R+16.4	D+8.4
2022	2022_Gov-G_FL	Gov-G	2022-10-31	659	R+12.0	R+19.4	D+7.4
2022	2022_House-G_NY-22	House-G	2022-10-30	432	D+4.0	R+1.0	D+5.0
2022	2022_House-G_NY-19	House-G	2022-10-30	455	D+5.0	R+1.6	D+6.6
2022	2022_Sen-G_WI	Sen-G	2022-10-29	655	R+2.0	R+1.0	R+1.0
2022	2022_Gov-G_WI	Gov-G	2022-10-29	655	D+2.0	D+3.4	R+1.4
2022	2022_Gov-G_TX	Gov-G	2022-10-18	649	R+9.0	R+10.9	D+1.9
2020	2020_House-G_NY-24	House-G	2020-10-21	558	0	R+10.2	D+10.2
2018	2018_Sen-G_NY	Sen-G	2018-10-30	641	D+23.0	D+34.0	R+11.0
2018	2018_Gov-G_NY	Gov-G	2018-10-30	641	D+13.0	D+23.4	R+10.4
2018	2018_House-G_NY-24	House-G	2018-10-20	500	R+14.0	R+5.3	R+8.7
2018	2018_House-G_NY-22	House-G	2018-10-17	501	D+1.0	D+1.8	R+0.8
2016	2016_Sen-G_NY	Sen-G	2016-11-04	617	D+42.0	D+42.6	R+0.6
2016	2016_Pres-G_NY	Pres-G	2016-11-04	617	D+17.0	D+22.6	R+5.6
2016	2016_House-G_NY-22	House-G	2016-11-02	643	R+4.0	R+5.5	D+1.4
2016	2016_House-G_NY-19	House-G	2016-11-02	605	R+6.0	R+8.1	D+2.1
2016	2016_House-G_NY-3	House-G	2016-10-31	614	D+7.0	D+6.0	D+1.0
2016	2016_House-G_NY-1	House-G	2016-10-29	607	R+21.0	R+16.4	R+4.6
2016	2016_House-G_NY-24	House-G	2016-10-19	673	R+23.0	R+21.1	R+1.9
2014	2014_House-G_NY-1	House-G	2014-10-28	670	R+5.0	R+8.9	D+3.9
2014	2014_House-G_NY-11	House-G	2014-10-27	713	R+19.0	R+12.8	R+6.2
2014	2014_House-G_NY-18	House-G	2014-10-26	682	D+5.0	D+1.9	D+3.1
2014	2014_House-G_NY-24	House-G	2014-10-23	704	R+10.0	R+19.2	D+9.2
2014	2014_House-G_NY-19	House-G	2014-10-23	727	R+23.0	R+29.0	D+6.0
2014	2014_House-G_NY-21	House-G	2014-10-21	670	R+18.0	R+21.3	D+3.3
2014	2014_House-G_NY-4	House-G	2014-10-18	628	D+10.0	D+5.7	D+4.3
2014	2014_Gov-G_NY	Gov-G	2014-10-18	748	D+21.0	D+14.0	D+7.0
2012	2012_House-G_NY-27	House-G	2012-11-01	636	R+1.0	R+1.6	D+0.6
2012	2012_House-G_NY-24	House-G	2012-11-01	670	0	D+5.5	R+5.5
2012	2012_House-G_NY-25	House-G	2012-10-30	624	D+10.0	D+14.8	R+4.8
2012	2012_House-G_NY-21	House-G	2012-10-30	629	D+1.0	D+2.0	R+1.0
2012	2012_House-G_NY-19	House-G	2012-10-28	649	R+5.0	R+5.7	D+0.7
2012	2012_House-G_NY-11	House-G	2012-10-28	627	R+18.0	R+5.4	R+12.6
2012	2012_Sen-G_NY	Sen-G	2012-10-23	750	D+43.0	D+45.8	R+2.8
2012	2012_Pres-G_NY	Pres-G	2012-10-23	750	D+24.0	D+28.2	R+4.2
2012	2012_House-G_NY-18	House-G	2012-10-17	615	R+7.0	D+3.9	R+10.9
2011	2011_House-GS_NY-9	House-G	2011-09-07	886	R+6.0	R+5.2	R+0.8
2011	2011_House-GS_NY-26	House-G	2011-05-19	639	D+4.0	D+5.0	R+1.0
2010	2010_Sen-G_NY	Sen-G	2010-10-29	603	D+32.0	D+34.1	R+2.1
2010	2010_Sen-GS_NY	Sen-G	2010-10-29	603	D+20.0	D+27.8	R+7.8
2010	2010_Gov-G_NY	Gov-G	2010-10-29	603	D+25.0	D+29.3	R+4.3
2010	2010_House-G_NY-23	House-G	2010-10-25	623	D+3.0	D+1.1	D+1.9
2010	2010_House-G_NY-19	House-G	2010-10-25	651	D+1.0	R+5.4	D+6.4
2010	2010_House-G_NY-24	House-G	2010-10-24	632	D+5.0	R+6.2	D+11.2
2010	2010_House-G_NY-20	House-G	2010-10-24	676	R+9.0	R+9.7	D+0.7
2010	2010_Sen-G_NY	Sen-G	2010-10-16	647	D+39.0	D+34.1	D+4.9
2010	2010_Sen-GS_NY	Sen-G	2010-10-16	647	D+29.0	D+27.8	D+1.2
2010	2010_Gov-G_NY	Gov-G	2010-10-16	647	D+37.0	D+29.3	D+7.7
2009	2009_House-GS_NY-20	House-G	2009-03-26	917	D+4.0	D+0.5	D+3.5
2009	2009_House-GS_NY-20	House-G	2009-03-10	712	R+4.0	D+0.5	R+4.5

Method · historical final-three-week D/R general-election rows plus verified historical supplement; min n=5

Definition · bias_D is poll D-R margin minus actual D-R margin; positive overstates Democrats.

A missing sample, sponsor or source is labeled unavailable; it is never reconstructed.

Poll data via VoteHub, used under CC BY 4.0. Poll data from The New York Times, used under CC BY 4.0.