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Pollster file

Suffolk University

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
67
Mean absolute error
3.96percentage points
Historical bias
D+0.61
Represented cycles
172002–2025
Current archive
22canonical records
History span
Oct 21, 2002through Oct 29, 2025
Identity

Known names and relationships

Known aliases
Suffolk University/USA Today · USA Today/Suffolk University
Organization type
Single canonical organization
Cycles represented
2002 · 2004 · 2006 · 2008 · 2009 · 2010 · 2012 · 2013 · 2014 · 2016 · 2017 · 2018 · 2020 · 2021 · 2022 · 2024 · 2025

67 eligible historical polls across 17 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.

10 shown · 22 total

Sand +4.2

Rob Sand 47.8% · Zach Lahn 43.6%

Field dates
Aug 20–Aug 23, 2026
Sample
500 LV
Sponsor / client
Not reported in archive
Partisan sponsorship
No partisan sponsorship flag
Hinson +4.6

Ashley Hinson 45.4% · Josh Turek 40.8%

Field dates
Aug 20–Aug 23, 2026
Sample
500 LV
Sponsor / client
Not reported in archive
Partisan sponsorship
No partisan sponsorship flag
Healey +25

Maura Healey 56% · Mike Minogue 31%

Field dates
Jun 8–Jun 12, 2026
Sample
500 RV
Sponsor / client
The Boston Globe
Partisan sponsorship
No partisan sponsorship flag
Markey +25

Ed Markey 55% · John Deaton 30%

Field dates
Jun 8–Jun 12, 2026
Sample
500 RV
Sponsor / client
The Boston Globe
Partisan sponsorship
No partisan sponsorship flag
Moulton +28

Seth Moulton 54% · John Deaton 26%

Field dates
Jun 8–Jun 12, 2026
Sample
500 RV
Sponsor / client
The Boston Globe
Partisan sponsorship
No partisan sponsorship flag
Healey +27

Maura Healey 56% · Brian Shortsleeve 29%

Field dates
Jun 8–Jun 12, 2026
Sample
500 RV
Sponsor / client
The Boston Globe
Partisan sponsorship
No partisan sponsorship flag
Moulton +23

Seth Moulton 52% · John Deaton 29%

Field dates
Nov 19–Nov 23, 2025
Sample
500 RV
Sponsor / client
Boston Globe
Partisan sponsorship
No partisan sponsorship flag
Markey +23

Ed Markey 54% · John Deaton 31%

Field dates
Nov 19–Nov 23, 2025
Sample
500 RV
Sponsor / client
Boston Globe
Partisan sponsorship
No partisan sponsorship flag
Governor

GOV-NJ

Sherrill +4

Mikie Sherrill 46.2% · Jack Ciattarelli 42.2%

Field dates
Oct 26–Oct 29, 2025
Sample
500 LV
Sponsor / client
Not reported in archive
Partisan sponsorship
No partisan sponsorship flag
Governor

GOV-VA

Spanberger +8.6

Abigail Spanberger 51.8% · Winsome Earle-Sears 43.2%

Field dates
Oct 19–Oct 21, 2025
Sample
500 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 · 67 total

CycleRaceTypeField endSamplePollResultError
2025NJ · GovernorGov-G2025-10-29—D+4.0D+14.4R+10.4
2025VA · GovernorGov-G2025-10-21—D+9.0D+15.4R+6.4
2025VA · Attorney generalAG-G2025-10-21—R+4.0D+6.7R+10.7
2024PA · PresidentPres-G2024-10-30—0R+1.7D+1.7
2024MI · PresidentPres-G2024-10-27—0R+1.4D+1.4
2024WI · PresidentPres-G2024-10-23—R+1.0R+0.9R+0.1
2024national · PresidentPres-G2024-10-18—D+1.0R+1.5D+2.5
20222022_Sen-G_PASen-G2022-10-29500D+1.8D+4.9R+3.1
20222022_Gov-G_PAGov-G2022-10-29500D+12.0D+14.8R+2.8
20222022_Sen-G_NVSen-G2022-10-26500D+1.0D+0.8D+0.2
20222022_Gov-G_NVGov-G2022-10-26500R+0.4R+1.5D+1.1
20222022_House-G_USHouse-G2022-10-221,000R+4.5R+2.7R+1.8
20212021_Gov-G_VAGov-G2021-10-23500D+0.4R+1.9D+2.3
20202020_Pres-G_USPres-G2020-10-251,000D+7.0D+4.5D+2.5
20202020_House-G_USHouse-G2020-10-251,000D+10.1D+3.0D+7.1
20202020_Pres-G_PAPres-G2020-10-17500D+6.2D+1.2D+5.0
20182018_Sen-G_FLSen-G2018-10-27500D+1.8R+0.1D+1.9
20182018_Gov-G_FLGov-G2018-10-27500D+1.0R+0.4D+1.4
20182018_Sen-G_MASen-G2018-10-26500D+21.2D+24.2R+3.0
20182018_Gov-G_MAGov-G2018-10-26500R+39.4R+33.6R+5.8
20182018_House-G_USHouse-G2018-10-201,000D+8.6D+8.8R+0.1
20172017_Gov-G_VAGov-G2017-10-31500D+4.0D+8.9R+4.9
20172017_Gov-G_NJGov-G2017-10-27500D+15.6D+14.1D+1.5
20162016_Sen-G_NHSen-G2016-11-01500R+2.8D+0.1R+2.9
20162016_Pres-G_NHPres-G2016-11-01500R+0.4D+0.4R+0.8
20162016_Gov-G_NHGov-G2016-11-01500R+4.0R+2.3R+1.7
20162016_Pres-G_MAPres-G2016-10-25500D+32.0D+27.6D+4.4
20162016_Pres-G_USPres-G2016-10-221,000D+10.1D+2.1D+7.9
20162016_Sen-G_OHSen-G2016-10-18500R+15.0R+20.9D+5.9
20162016_Pres-G_OHPres-G2016-10-185000R+8.1D+8.1
20142014_Sen-G_MASen-G2014-10-28500D+15.0D+23.9R+8.9
20142014_Gov-G_MAGov-G2014-10-28500R+3.4R+1.9R+1.5
20142014_Sen-O_LASen-G2014-10-25500D+1.6D+1.1D+0.5
20142014_Sen-G_COSen-G2014-10-20500R+7.4R+1.9R+5.5
20142014_Gov-G_COGov-G2014-10-20500R+2.0D+3.3R+5.3
20142014_Sen-G_NHSen-G2014-10-18500D+3.0D+3.3R+0.3
20142014_Gov-G_NHGov-G2014-10-18500D+10.2D+5.0D+5.2
20132013_Sen-GS_MASen-G2013-06-21500D+10.0D+10.2R+0.2
20132013_Sen-GS_MASen-G2013-06-08500D+7.0D+10.2R+3.2
20122012_Sen-G_MASen-G2012-10-27600D+7.0D+7.5R+0.6
20122012_Pres-G_MAPres-G2012-10-27600D+32.0D+23.2D+8.8
20122012_Sen-G_OHSen-G2012-10-20600D+7.0D+6.0D+1.0
20122012_Pres-G_OHPres-G2012-10-20600R+0.1D+3.0R+3.1
20102010_Gov-G_MAGov-G2010-10-26500D+7.0D+6.4D+0.6
20102010_Sen-G_CASen-G2010-10-23600D+9.0D+10.0R+1.0
20102010_Gov-G_CAGov-G2010-10-23600D+8.0D+12.9R+4.9
20102010_Sen-G_CTSen-G2010-10-20500D+18.0D+11.9D+6.1
20102010_Gov-G_CTGov-G2010-10-20500D+11.0D+0.6D+10.4
20102010_Gov-G_FLGov-G2010-10-16500D+7.0R+1.1D+8.2
20102010_Sen-GS_MASen-G2010-01-12500R+4.0R+4.8D+0.8

1 further row is held in this pollster’s history shard as within-party or nonpartisan contests (NYC-G). Those carry no D/R orientation, so they are excluded from the error, bias and coverage figures above and from the table.

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.