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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.

12 shown · 22 total

Hinson +4.6

Don't know 9.8% · Thomas Laehn 4% · Josh Turek 40.8% · Ashley Hinson 45.4%

Field dates
Aug 20–Aug 23, 2026
Sample
500 LV
Sponsor / client
Not reported in archive
Partisan sponsorship
No partisan sponsorship flag
Sand +4.2

Don't know 8.6% · Zach Lahn 43.6% · Rob Sand 47.8%

Field dates
Aug 20–Aug 23, 2026
Sample
500 LV
Sponsor / client
Not reported in archive
Partisan sponsorship
No partisan sponsorship flag
Markey +25.2

Don't know 15.2% · John Deaton 29.8% · Ed Markey 55%

Field dates
Jun 8–Jun 12, 2026
Sample
500 RV
Sponsor / client
Boston Globe
Partisan sponsorship
No partisan sponsorship flag
Moulton +27.6

Don't know 20% · John Deaton 26.2% · Seth Moulton 53.8%

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

Don't know 14.2% · Brian Shortsleeve 29.4% · Maura Healey 56.4%

Field dates
Jun 8–Jun 12, 2026
Sample
500 RV
Sponsor / client
Boston Globe
Partisan sponsorship
No partisan sponsorship flag
Healey +25.2

Don't know 12.8% · Mike Minogue 31% · Maura Healey 56.2%

Field dates
Jun 8–Jun 12, 2026
Sample
500 RV
Sponsor / client
Boston Globe
Partisan sponsorship
No partisan sponsorship flag
Primary · R primary

Massachusetts · Governor

Shortsleeve +9

Mike Kennealy 13% · Brian Shortsleeve 22% · Mike Minogue 6%

Field dates
Nov 23, 2025
Sample
93 LV
Sponsor / client
Not reported in archive
Partisan sponsorship
No partisan sponsorship flag
Markey +23

Don't know 14% · John Deaton 31% · Ed Markey 54%

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

Don't know 20% · John Deaton 29% · Seth Moulton 52%

Field dates
Nov 19–Nov 23, 2025
Sample
500 RV
Sponsor / client
Boston Globe
Partisan sponsorship
No partisan sponsorship flag
See this pollster in the Full Poll Archive →
Certified-result history

Eligible historical observations

17 shown · 67 total

CycleRaceTypeField endSamplePollResultError
20092009_Gov-G_NJGov-G2009-10-24400D+9.0R+3.6D+12.6
20082008_Sen-G_NHSen-G2008-10-28600D+9.0D+6.3D+2.7
20082008_Pres-G_NHPres-G2008-10-28600D+13.0D+9.6D+3.4
20082008_Gov-G_NHGov-G2008-10-28600D+52.0D+42.6D+9.4
20082008_Pres-G_NVPres-G2008-10-25450D+10.0D+12.6R+2.6
20082008_Pres-G_FLPres-G2008-10-25600D+5.0D+2.8D+2.2
20082008_Sen-G_MASen-G2008-10-21400D+37.0D+35.0D+2.0
20082008_Pres-G_MAPres-G2008-10-21400D+19.0D+25.9R+6.9
20082008_Pres-G_OHPres-G2008-10-18600D+9.0D+4.6D+4.4
20082008_Pres-G_MOPres-G2008-10-18600R+1.0R+0.1R+0.9
20062006_Sen-G_MASen-G2006-10-22400D+34.0D+38.8R+4.8
20062006_Gov-G_MAGov-G2006-10-22400D+27.0D+20.3D+6.7
20042004_Sen-G_NHSen-G2004-10-16400R+26.0R+32.5D+6.5
20042004_Pres-G_NHPres-G2004-10-16400D+5.5D+1.4D+4.1
20042004_Gov-G_NHGov-G2004-10-16400R+2.0D+2.1R+4.2
20022002_Gov-G_MAGov-G2002-11-03500R+3.0R+4.8D+1.8
20022002_Gov-G_MAGov-G2002-10-21500R+0.5R+4.8D+4.3

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.