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Pollster file

University of New Hampshire Survey Center

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: 116
Mean absolute error: 5.93percentage points
Historical bias: D+2.31
Represented cycles: 132000–2022
Current archive: 156canonical records
History span: Nov 3, 2000through Nov 4, 2022

Identity

Known names and relationships

Known aliases: University of New Hampshire
Organization type: Single canonical organization
Cycles represented: 2000 · 2002 · 2004 · 2006 · 2008 · 2010 · 2012 · 2013 · 2014 · 2016 · 2018 · 2020 · 2022

116 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.

12 shown · 156 total

Primary · D primary

Massachusetts · Senate

Markey +13

Ed Markey 46% · Seth Moulton 33% · Alexander Rikleen 6%

Field dates: Apr 20, 2026
Sample: 353 LV
Sponsor / client: Not reported in archive
Partisan sponsorship: No partisan sponsorship flag

Race

Massachusetts · Governor

Healey +20

Don't know 15% · Someone else 0% · Mike Minogue 32% · Maura Healey 52%

Field dates: Apr 16–Apr 20, 2026
Sample: 599 LV
Sponsor / client: Not reported in archive
Partisan sponsorship: No partisan sponsorship flag

Race

Massachusetts · Governor

Healey +22

Don't know 17% · Someone else 3% · Brian Shortsleeve 29% · Maura Healey 51%

Field dates: Apr 16–Apr 20, 2026
Sample: 603 LV
Sponsor / client: Not reported in archive
Partisan sponsorship: No partisan sponsorship flag

Primary · D primary

Rhode Island · Senate

Reed +50

Connor Burbridge 15% · Jack Reed 65%

Field dates: Apr 20, 2026
Sample: 323 LV
Sponsor / client: Not reported in archive
Partisan sponsorship: No partisan sponsorship flag

Primary · D primary

Connecticut · Governor

Lamont +34

Ned Lamont 52% · Josh Elliott 18%

Field dates: Apr 20, 2026
Sample: 177 LV
Sponsor / client: Not reported in archive
Partisan sponsorship: No partisan sponsorship flag

Race

Rhode Island · Senate

Reed +18

Don't know 12% · Someone else 2% · Jack Reed 52% · Raymond McKay 34%

Field dates: Apr 16–Apr 20, 2026
Sample: 556 LV
Sponsor / client: Not reported in archive
Partisan sponsorship: No partisan sponsorship flag

Race

Massachusetts · Governor

Healey +21

Don't know 13% · Someone else 3% · Mike Kennealy 32% · Maura Healey 53%

Field dates: Apr 16–Apr 20, 2026
Sample: 597 LV
Sponsor / client: Not reported in archive
Partisan sponsorship: No partisan sponsorship flag

Race

Massachusetts · Senate

Moulton +31

Don't know 18% · Someone else 1% · Seth Moulton 56% · John Deaton 25%

Field dates: Apr 16–Apr 20, 2026
Sample: 600 LV
Sponsor / client: Not reported in archive
Partisan sponsorship: No partisan sponsorship flag

Race

Massachusetts · Senate

Markey +23

Don't know 12% · Someone else 1% · Ed Markey 55% · John Deaton 32%

Field dates: Apr 16–Apr 20, 2026
Sample: 603 LV
Sponsor / client: Not reported in archive
Partisan sponsorship: No partisan sponsorship flag

Race

HOU-ME-02

LePage +4

Don't know 6% · Someone else 2% · Jordan Wood 44% · Paul LePage 48%

Field dates: Feb 12–Feb 16, 2026
Sample: 520 LV
Sponsor / client: Not reported in archive
Partisan sponsorship: No partisan sponsorship flag

Race

Maine · Senate

Mills +1

Don't know 10% · Someone else 9% · Janet Mills 41% · Susan Collins 40%

Field dates: Feb 12–Feb 16, 2026
Sample: 1,097 LV
Sponsor / client: Not reported in archive
Partisan sponsorship: No partisan sponsorship flag

Race

Massachusetts · Governor

Healey +30

Don't know 14% · Someone else 1% · Brian Shortsleeve 28% · Maura Healey 58%

Field dates: Feb 12–Feb 16, 2026
Sample: 612 LV
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 · 116 total

Cycle	Race	Type	Field end	Sample	Poll	Result	Error
2022	2022_Sen-G_NH	Sen-G	2022-11-04	2,077	D+2.0	D+9.1	R+7.1
2022	2022_House-G_NH-2	House-G	2022-11-04	1,027	D+8.0	D+11.7	R+3.7
2022	2022_House-G_NH-1	House-G	2022-11-04	1,043	D+1.0	D+8.1	R+7.1
2022	2022_House-G_ME-2	House-G	2022-11-04	433	D+1.0	D+3.7	R+2.7
2022	2022_House-G_ME-1	House-G	2022-11-04	477	D+19.0	D+25.9	R+6.9
2022	2022_Gov-G_NH	Gov-G	2022-11-04	2,077	R+12.0	R+15.6	D+3.6
2022	2022_Gov-G_ME	Gov-G	2022-11-04	922	D+8.0	D+13.2	R+5.2
2020	2020_Sen-G_NH	Sen-G	2020-10-26	864	D+11.0	D+15.7	R+4.7
2020	2020_Pres-G_NH	Pres-G	2020-10-26	864	D+8.0	D+7.4	D+0.6
2020	2020_House-G_NH-2	House-G	2020-10-26	412	D+10.0	D+10.2	R+0.2
2020	2020_House-G_NH-1	House-G	2020-10-26	451	R+2.0	D+5.1	R+7.1
2020	2020_Gov-G_NH	Gov-G	2020-10-26	864	R+24.0	R+31.8	D+7.8
2018	2018_House-G_NH-2	House-G	2018-11-03	321	D+21.0	D+13.4	D+7.6
2018	2018_House-G_NH-1	House-G	2018-11-03	309	D+13.0	D+8.6	D+4.5
2018	2018_Gov-G_NH	Gov-G	2018-11-03	630	0	R+7.0	D+7.0
2016	2016_Sen-G_NH	Sen-G	2016-11-05	692	D+4.0	D+0.1	D+3.9
2016	2016_Pres-G_NH	Pres-G	2016-11-05	692	D+11.0	D+0.4	D+10.6
2016	2016_House-G_NH-2	House-G	2016-11-05	322	D+21.0	D+4.4	D+16.6
2016	2016_House-G_NH-1	House-G	2016-11-05	323	D+9.0	D+1.3	D+7.7
2016	2016_Gov-G_NH	Gov-G	2016-11-05	671	D+11.0	R+2.3	D+13.3
2016	2016_Sen-G_NH	Sen-G	2016-11-01	466	D+7.0	D+0.1	D+6.9
2016	2016_Pres-G_NH	Pres-G	2016-11-01	466	D+7.0	D+0.4	D+6.6
2016	2016_House-G_NH-2	House-G	2016-11-01	221	D+23.0	D+4.4	D+18.6
2016	2016_House-G_NH-1	House-G	2016-11-01	219	D+7.0	D+1.3	D+5.7
2016	2016_Gov-G_NH	Gov-G	2016-11-01	455	D+8.0	R+2.3	D+10.3
2016	2016_Sen-G_NH	Sen-G	2016-10-28	516	D+1.0	D+0.1	D+0.9
2016	2016_Pres-G_NH	Pres-G	2016-10-28	516	D+8.0	D+0.4	D+7.6
2016	2016_House-G_NH-2	House-G	2016-10-28	237	D+15.0	D+4.4	D+10.6
2016	2016_House-G_NH-1	House-G	2016-10-28	239	D+4.0	D+1.3	D+2.7
2016	2016_Gov-G_NH	Gov-G	2016-10-28	503	D+1.0	R+2.3	D+3.3
2016	2016_Pres-G_ME	Pres-G	2016-10-23	670	D+11.0	D+3.0	D+8.0
2016	2016_Pres-G_M2	Pres-G	2016-10-23	341	D+3.0	R+10.3	D+13.3
2016	2016_Pres-G_M1	Pres-G	2016-10-23	329	D+20.0	D+14.8	D+5.2
2016	2016_House-G_ME-2	House-G	2016-10-23	314	D+2.0	R+9.6	D+11.6
2016	2016_House-G_ME-1	House-G	2016-10-23	299	D+33.0	D+16.1	D+16.9
2014	2014_Sen-G_NH	Sen-G	2014-10-31	757	D+2.0	D+3.3	R+1.3
2014	2014_House-G_NH-2	House-G	2014-10-31	352	D+7.0	D+10.0	R+3.0
2014	2014_House-G_NH-1	House-G	2014-10-31	405	R+1.0	R+3.6	D+2.6
2014	2014_Gov-G_NH	Gov-G	2014-10-31	747	D+4.0	D+5.0	R+1.0
2014	2014_Sen-G_NH	Sen-G	2014-10-24	555	D+8.0	D+3.3	D+4.7
2014	2014_House-G_NH-2	House-G	2014-10-24	294	D+23.0	D+10.0	D+13.0
2014	2014_House-G_NH-1	House-G	2014-10-24	261	D+4.0	R+3.6	D+7.6
2014	2014_Gov-G_NH	Gov-G	2014-10-24	555	D+15.0	D+5.0	D+10.0
2014	2014_Sen-G_ME	Sen-G	2014-10-18	667	R+35.0	R+37.0	D+2.0
2014	2014_House-G_ME-2	House-G	2014-10-18	291	R+1.0	R+5.2	D+4.2
2014	2014_House-G_ME-1	House-G	2014-10-18	348	D+38.0	D+29.8	D+8.2
2014	2014_Gov-G_ME	Gov-G	2014-10-18	639	R+10.0	R+4.8	R+5.2
2013	2013_Sen-GS_MA	Sen-G	2013-06-13	508	D+13.0	D+10.2	D+2.8
2012	2012_Pres-G_NH	Pres-G	2012-11-03	783	D+4.0	D+5.6	R+1.6
2012	2012_House-G_NH-2	House-G	2012-11-03	411	D+7.0	D+4.8	D+2.2

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.