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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

Race

Massachusetts · Senate

Moulton +20

Don't know 19% · Someone else 1% · John Deaton 30% · Seth Moulton 50%

Field dates: Jun 18–Jun 23, 2026
Sample: 600 LV
Sponsor / client: Not reported in archive
Partisan sponsorship: No partisan sponsorship flag

Primary · D primary

Rhode Island · Governor

Foulkes +20

Helena Foulkes 42% · Dan McKee 22% · Gregory Stevens 1%

Field dates: Jun 23, 2026
Sample: 337 LV
Sponsor / client: Not reported in archive
Partisan sponsorship: No partisan sponsorship flag

Primary · R primary

VT-AL

Malloy +29

Mark Coester 19% · Gerald Malloy 48%

Field dates: Jun 23, 2026
Sample: 237 LV
Sponsor / client: Not reported in archive
Partisan sponsorship: No partisan sponsorship flag

Race

Rhode Island · Senate

Reed +17

Don't know 12% · Someone else 1% · Jack Reed 52% · Raymond McKay 35%

Field dates: Jun 18–Jun 23, 2026
Sample: 627 LV
Sponsor / client: Not reported in archive
Partisan sponsorship: No partisan sponsorship flag

Race

Vermont · Governor

Scott +15

Don't know 26% · Someone else 1% · Phil Scott 41% · Dean Roy 1% · Aly Richards 25% · June Goodband 6%

Field dates: Jun 18–Jun 23, 2026
Sample: 867 LV
Sponsor / client: Not reported in archive
Partisan sponsorship: No partisan sponsorship flag

Race

Massachusetts · Governor

Healey +18

Don't know 15% · Someone else 3% · Brian Shortsleeve 32% · Maura Healey 50%

Field dates: Jun 18–Jun 23, 2026
Sample: 608 LV
Sponsor / client: Not reported in archive
Partisan sponsorship: No partisan sponsorship flag

Primary · D primary

New Hampshire · Senate

Pappas +24

Karishma Manzur 29% · Chris Pappas 53%

Field dates: Jun 23, 2026
Sample: 997 LV
Sponsor / client: Not reported in archive
Partisan sponsorship: No partisan sponsorship flag

Race

New Hampshire · Senate

Pappas +3

Don't know 7% · Someone else 2% · John Sununu 44% · Chris Pappas 47%

Field dates: Jun 18–Jun 23, 2026
Sample: 2,157 LV
Sponsor / client: Not reported in archive
Partisan sponsorship: No partisan sponsorship flag

Race

HOU-VT-01

Balint +31

Don't know 16% · Someone else 0% · Adam Ortiz 1% · Gerald Malloy 26% · Becca Balint 57%

Field dates: Jun 18–Jun 23, 2026
Sample: 872 LV
Sponsor / client: Not reported in archive
Partisan sponsorship: No partisan sponsorship flag

Primary · D primary

Connecticut · Governor

Lamont +30

Ned Lamont 53% · Josh Elliott 23%

Field dates: Jun 23, 2026
Sample: 286 LV
Sponsor / client: Not reported in archive
Partisan sponsorship: No partisan sponsorship flag

Primary · D primary

Vermont · Governor

Janoo +8

Amanda Janoo 20% · Aly Richards 12%

Field dates: Jun 23, 2026
Sample: 511 LV
Sponsor / client: Not reported in archive
Partisan sponsorship: No partisan sponsorship flag

Race

Massachusetts · Governor

Healey +19

Don't know 16% · Someone else 1% · Mike Minogue 32% · Maura Healey 51%

Field dates: Jun 18–Jun 23, 2026
Sample: 608 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
2012	2012_House-G_NH-1	House-G	2012-11-03	365	0	D+3.8	R+3.8
2012	2012_Gov-G_NH	Gov-G	2012-11-03	789	D+9.0	D+12.1	R+3.1
2012	2012_Pres-G_NH	Pres-G	2012-11-01	502	0	D+5.6	R+5.6
2012	2012_Gov-G_NH	Gov-G	2012-11-01	502	D+5.0	D+12.1	R+7.1
2012	2012_Sen-G_MA	Sen-G	2012-10-26	583	0	D+7.5	R+7.5
2012	2012_Pres-G_MA	Pres-G	2012-10-26	583	D+14.0	D+23.2	R+9.2
2012	2012_Pres-G_NH	Pres-G	2012-10-19	773	D+9.0	D+5.6	D+3.4
2012	2012_House-G_NH-2	House-G	2012-10-19	408	D+3.0	D+4.8	R+1.8
2012	2012_House-G_NH-1	House-G	2012-10-19	364	R+3.0	D+3.8	R+6.8
2012	2012_Gov-G_NH	Gov-G	2012-10-19	773	D+8.0	D+12.1	R+4.1
2010	2010_Sen-G_NH	Sen-G	2010-10-29	885	R+18.0	R+23.2	D+5.2
2010	2010_House-G_NH-2	House-G	2010-10-29	451	D+3.0	R+1.6	D+4.6
2010	2010_House-G_NH-1	House-G	2010-10-29	434	R+7.0	R+11.6	D+4.6
2010	2010_Gov-G_NH	Gov-G	2010-10-29	885	D+7.0	D+7.6	R+0.6
2010	2010_House-G_MA-4	House-G	2010-10-20	385	D+13.0	D+10.5	D+2.5
2010	2010_House-G_MA-10	House-G	2010-10-20	349	D+4.0	D+4.5	R+0.5
2010	2010_Gov-G_MA	Gov-G	2010-10-20	519	D+4.0	D+6.4	R+2.4
2010	2010_Sen-GS_MA	Sen-G	2010-01-04	554	D+17.0	R+4.8	D+21.8
2008	2008_Sen-G_NH	Sen-G	2008-11-01	816	D+6.0	D+6.3	R+0.3
2008	2008_Pres-G_NH	Pres-G	2008-11-01	812	D+11.0	D+9.6	D+1.4
2008	2008_House-G_NH-2	House-G	2008-11-01	404	D+21.0	D+15.0	D+6.0
2008	2008_House-G_NH-1	House-G	2008-11-01	413	D+5.0	D+5.9	R+0.9
2008	2008_Gov-G_NH	Gov-G	2008-11-01	831	D+47.0	D+42.6	D+4.4
2008	2008_Sen-G_NH	Sen-G	2008-10-28	687	D+5.0	D+6.3	R+1.3
2008	2008_Pres-G_NH	Pres-G	2008-10-28	692	D+16.0	D+9.6	D+6.4
2008	2008_House-G_NH-2	House-G	2008-10-28	303	D+28.0	D+15.0	D+13.0
2008	2008_House-G_NH-1	House-G	2008-10-28	308	D+3.0	D+5.9	R+2.9
2008	2008_Gov-G_NH	Gov-G	2008-10-28	619	D+51.0	D+42.6	D+8.4
2008	2008_Sen-G_NH	Sen-G	2008-10-25	687	D+11.0	D+6.3	D+4.7
2008	2008_Pres-G_NH	Pres-G	2008-10-25	692	D+16.0	D+9.6	D+6.4
2008	2008_House-G_NH-2	House-G	2008-10-25	344	D+22.0	D+15.0	D+7.0
2008	2008_House-G_NH-1	House-G	2008-10-25	341	D+8.0	D+5.9	D+2.1
2008	2008_Gov-G_NH	Gov-G	2008-10-25	698	D+50.0	D+42.6	D+7.4
2008	2008_Sen-G_NH	Sen-G	2008-10-20	725	D+13.0	D+6.3	D+6.7
2008	2008_Pres-G_NH	Pres-G	2008-10-20	725	D+15.0	D+9.6	D+5.4
2008	2008_House-G_NH-2	House-G	2008-10-20	349	D+26.0	D+15.0	D+11.0
2008	2008_House-G_NH-1	House-G	2008-10-20	358	D+5.0	D+5.9	R+0.9
2008	2008_Gov-G_NH	Gov-G	2008-10-20	725	D+50.0	D+42.6	D+7.4
2006	2006_House-G_NH-2	House-G	2006-11-04	304	D+4.5	D+7.1	R+2.6
2006	2006_House-G_NH-1	House-G	2006-11-04	331	R+9.0	D+2.6	R+11.6
2006	2006_Gov-G_NH	Gov-G	2006-11-04	641	D+56.0	D+48.3	D+7.7
2006	2006_House-G_NH-2	House-G	2006-10-31	320	0	D+7.1	R+7.1
2006	2006_House-G_NH-1	House-G	2006-10-31	340	R+5.0	D+2.6	R+7.6
2006	2006_Gov-G_NH	Gov-G	2006-10-31	663	D+52.0	D+48.3	D+3.7
2006	2006_Sen-G_MA	Sen-G	2006-10-24	585	D+41.0	D+38.8	D+2.2
2006	2006_Gov-G_MA	Gov-G	2006-10-24	585	D+25.0	D+20.3	D+4.7
2004	2004_Sen-G_NH	Sen-G	2004-10-30	957	R+36.0	R+32.5	R+3.5
2004	2004_Pres-G_NH	Pres-G	2004-10-30	963	D+1.0	D+1.4	R+0.4
2004	2004_House-G_NH-2	House-G	2004-10-30	464	R+18.0	R+20.1	D+2.1
2004	2004_House-G_NH-1	House-G	2004-10-30	492	R+19.0	R+26.8	D+7.8

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.