Polls database

Every poll we use, with its source

11,685 polls since 2015: national questions, Senate, House, governor and state legislative races, presidential primaries and ballot measures. Filter, then open any poll’s release.

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4,582

Senate polls.

Polls per month

287
Jul 2015Jan 2017Jan 2018Jan 2019Jan 2020Jan 2021Jan 2022Jan 2023Jan 2024Jan 2025Nov 2026

November, so far

Latest poll in the database ended Nov 2, 2026. Source: 99chambers polls database

DatesQuestionPollsterSponsorSamplePop.ModeResultMarginAdjustedvs resultSource
Nov 1, 20182018 United States Senate election in New Mexico (2018)C− Carroll Strategies—1,202V—Heinrich 51 · Rich 38D+13——Release
Oct 28–Nov 1, 20182018 United States Senate election in Montana (2018)D HarrisX—500V—Tester 49 · Rosendale 42D+7——Release
Oct 30–Nov 1, 20182018 United States Senate election in Missouri (2018)D HarrisX—600V—McCaskill 46 · Hawley 43D+3——Release
Oct 30–Nov 1, 20182018 United States Senate election in Missouri (2018)Not averagedB+ Marist UniversityNBC News920RV—McCaskill 50 · Hawley 46D+4——Release
Oct 30–Nov 1, 20182018 United States Senate election in Missouri (2018)Not averagedB+ Marist UniversityNBC News920RV—McCaskill 46 · Hawley 43D+3——Release
Oct 30–Nov 1, 20182018 United States Senate election in Missouri (2018)Not averagedB+ Marist UniversityNBC News600LV—McCaskill 50 · Hawley 47D+3——Release
Oct 30–Nov 1, 20182018 United States Senate election in Missouri (2018)B+ Marist UniversityNBC News600LV—McCaskill 47 · Hawley 44D+3——Release
Oct 30–Nov 1, 20182018 United States Senate election in Indiana (2018)D HarrisX—600V—Donnelly 43 · Braun 43Even——Release
Oct 30–Nov 1, 20182018 United States Senate election in Florida (2018)D HarrisX—600V—Nelson 45 · Scott 50R+5——Release
Oct 30–Nov 1, 20182018 United States Senate election in Connecticut (2018)B− Gravis Marketing—681V—Murphy 58 · Corey 35D+23——Release
Oct 30–Nov 1, 20182018 United States Senate election in Arizona (2018)B Trafalgar Group—2,166V—Sinema 50 · McSally 47D+3——Release
Oct 30–Nov 1, 20182018 United States Senate election in Arizona (2018)D HarrisX—600V—Sinema 42 · McSally 48R+6——Release
Oct 29–31, 20182018 United States Senate election in Wisconsin (2018)A+ Emerson College—604V—Baldwin 53 · Vukmir 44D+9——Release
Oct 28–31, 20182018 United States Senate election in West Virginia (2018)A+ Emerson College—1,013V—Manchin 47 · Morrisey 42D+5——Release
Oct 28–31, 20182018 United States Senate election in Tennessee (2018)D Targoz Market Research—480V—Bredesen 49 · Blackburn 49Even——Release
Oct 30–31, 20182018 United States Senate election in Ohio (2018)A+ Cygnal—503V—Brown 52 · Renacci 42D+10——Release
Oct 25–31, 20182018 United States Senate election in New Jersey (2018)B− Stockton University—598V—Menendez 51 · Hugin 39D+12——Release
Oct 27–31, 20182018 United States Senate election in Montana (2018)D HarrisX—500V—Tester 49 · Rosendale 42D+7——Release
Oct 29–31, 20182018 United States Senate election in Missouri (2018)D HarrisX—600V—McCaskill 45 · Hawley 43D+2——Release
Oct 29–31, 20182018 United States Senate special election in Minnesota (2018)A SurveyUSA—600V—Smith 48 · Housley 40D+8——Release
Oct 29–31, 20182018 United States Senate election in Minnesota (2018)A SurveyUSA—600V—Klobuchar 57 · Newberger 34D+23——Release
Oct 29–31, 20182018 United States Senate election in Indiana (2018)D HarrisX—600V—Donnelly 40 · Braun 43R+3——Release
Oct 29–31, 20182018 United States Senate election in Florida (2018)D HarrisX—600V—Nelson 45 · Scott 48R+3——Release
Oct 28–31, 20182018 United States Senate election in Florida (2018)D Targoz Market Research—558V—Nelson 45 · Scott 49R+4——Release
Oct 30–31, 20182018 United States Senate election in Florida (2018)B St. Pete Polls—2,470V—Nelson 49 · Scott 47D+2——Release
Oct 29–31, 20182018 United States Senate election in Arizona (2018)D HarrisX—600V—Sinema 42 · McSally 49R+7——Release
Oct 19–30, 20182018 United States Senate election in West Virginia (2018)B Research America—400V—Manchin 45 · Morrisey 40D+5——Release
Oct 28–30, 20182018 United States Senate election in Texas (2018)A+ Emerson College—781V—O'Rourke 47 · Cruz 50R+3——Release
Oct 27–30, 20182018 United States Senate election in Tennessee (2018)Not averagedA− Fox News—850RV—Bredesen 40 · Blackburn 48R+8——Release
Oct 27–30, 20182018 United States Senate election in Tennessee (2018)A− Fox News—718LV—Bredesen 41 · Blackburn 50R+9——Release
Oct 28–30, 20182018 United States Senate election in Tennessee (2018)A+ Emerson College—621V—Bredesen 44 · Blackburn 52R+8——Release
Oct 29–30, 20182018 United States Senate election in Ohio (2018)B− Gravis Marketing—789V—Brown 46 · Renacci 37D+9——Release
Oct 27–30, 20182018 United States Senate election in North Dakota (2018)Not averagedA− Fox News—851RV—Heitkamp 42 · Cramer 49R+7——Release
Oct 27–30, 20182018 United States Senate election in North Dakota (2018)A− Fox News—789LV—Heitkamp 42 · Cramer 51R+9——Release
Oct 24–30, 20182018 United States Senate election in Montana (2018)D HarrisX—700V—Tester 48 · Rosendale 40D+8——Release
Oct 27–30, 20182018 United States Senate election in Missouri (2018)Not averagedA− Fox News—851RV—McCaskill 43 · Hawley 44R+1——Release
Oct 27–30, 20182018 United States Senate election in Missouri (2018)Not averagedA− Fox News—851RV—McCaskill 41 · Hawley 42R+1——Release
Oct 27–30, 20182018 United States Senate election in Missouri (2018)Not averagedA− Fox News—741LV—McCaskill 45 · Hawley 45Even——Release
Oct 27–30, 20182018 United States Senate election in Missouri (2018)A− Fox News—741LV—McCaskill 43 · Hawley 43Even——Release
Oct 24–30, 20182018 United States Senate election in Missouri (2018)D HarrisX—1,400V—McCaskill 46 · Hawley 44D+2——Release
Oct 15–30, 20182018 United States Senate special election in Minnesota (2018)D St. Cloud State University—420V—Smith 44 · Housley 29D+15——Release
Oct 29–30, 20182018 United States Senate election in Michigan (2018)B− Gravis Marketing—764V—Stabenow 54 · James 41D+13——Release
Oct 24–30, 20182018 United States Senate election in Indiana (2018)D HarrisX—1,400V—Donnelly 42 · Braun 42Even——Release
Oct 27–30, 20182018 United States Senate election in Indiana (2018)Not averagedA− Fox News—852RV—Donnelly 42 · Braun 38D+4——Release
Oct 27–30, 20182018 United States Senate election in Indiana (2018)A− Fox News—722LV—Donnelly 45 · Braun 38D+7——Release
Oct 24–30, 20182018 United States Senate election in Florida (2018)D HarrisX—1,400V—Nelson 43 · Scott 44R+1——Release
Oct 27–30, 20182018 United States Senate election in Florida (2018)B+ Vox Populi Polling—696V—Nelson 50 · Scott 50Even——Release
Oct 29–30, 20182018 United States Senate election in Florida (2018)B Trafalgar Group—2,543V—Nelson 49 · Scott 47D+2——Release
Oct 24–30, 20182018 United States Senate election in Arizona (2018)D HarrisX—1,400V—Sinema 43 · McSally 48R+5——Release
Oct 27–30, 20182018 United States Senate election in Arizona (2018)B+ Vox Populi Polling—677V—Sinema 52 · McSally 48D+4——Release
Showing 3,101–3,150 of 4,582

Adjusted: after house-effect and population corrections. vs result: margin minus the certified or unofficial result. Latest poll in the database ended Nov 2, 2026. Source: each poll’s own release, as cited by the poll list it was compiled from (The New York Times for Senate, governor and House races; Wikipedia for other offices)