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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Matching polls

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
Oct 16–26, 20202020 United States Senate election in New Hampshire (2020)B YouGov/UMass Lowell—757LV—Shaheen 57 · Messner 38D+19——Release
Oct 23–26, 20202020 United States Senate election in New Hampshire (2020)A+ St. Anselm—1,018LV—Shaheen 54 · Messner 39D+15——Release
Oct 23–26, 20202020 United States Senate election in Mississippi (2020)B+ CiviqsDaily Kos507LV—Espy 44 · Hyde-Smith 52R+8——Release
Oct 24–26, 20202020 United States Senate election in Minnesota (2020)B− Gravis Marketing—657LV—Smith 53 · Lewis 39D+14——Release
Oct 20–26, 20202020 United States Senate election in Michigan (2020)B+ IpsosReuters652LV—Peters 50 · James 44D+6——Release
Oct 23–26, 20202020 United States Senate election in Michigan (2020)A The New York Times/Siena University—856LV—Peters 49 · James 41D+8——Release
Oct 23–26, 20202020 United States Senate election in Michigan (2020)C+ Swayable—365LV—Peters 58 · James 42D+16——Release
Oct 24–26, 20202020 United States Senate election in Michigan (2020)A+ Tarrance GroupJames' campaign—V—Peters 48 · James 46D+2——Release
Oct 23–26, 20202020 United States Senate special election in Arizona (2020)C+ Swayable—286LV—Kelly 56 · McSally 44D+12——Release
Oct 23–26, 20202020 United States Senate election in Alabama (2020)C+ Swayable—232LV—Jones 46 · Tuberville 54R+8——Release
Oct 17–25, 20202020 United States Senate election in Texas (2020)C+ Univision/University of Houston/Latino Decisions/North Star Opinion Research—758RV—Hegar 40 · Cornyn 45R+5——Release
Oct 20–25, 20202020 United States Senate election in Texas (2020)A The New York Times/Siena University—802LV—Hegar 38 · Cornyn 48R+10——Release
Oct 22–25, 20202020 United States Senate election in Texas (2020)B Data for Progress—1,018LV—Hegar 46 · Cornyn 48R+2——Release
Oct 24–25, 20202020 United States Senate election in South Carolina (2020)A− East Carolina University—763LV—Harrison 47 · Graham 49R+2——Release
Oct 22–25, 20202020 United States Senate election in North Carolina (2020)B+ Harper Polling/Civitas—504LV—Cunningham 46 · Tillis 43D+3——Release
Oct 25, 20202020 United States Senate election in Montana (2020)C+ The Progress Campaign——V—Bullock 48 · Daines 48Even——Release
Oct 20–25, 20202020 United States Senate election in Michigan (2020)A− ABC News/The Washington Post—789LV—Peters 52 · James 46D+6——Release
Oct 23–25, 20202020 United States Senate election in Michigan (2020)B Glengariff Group—600LV—Peters 48 · James 39D+9——Release
Oct 21–25, 20202020 United States Senate election in Maine (2020)Not averagedC− Colby College—879LV—Gideon 49 · Collins 44D+5——Release
Oct 21–25, 20202020 United States Senate election in Maine (2020)C− Colby College—879LV—Gideon 47 · Collins 43D+4——Release
Oct 17–25, 20202020 United States Senate special election in Arizona (2020)C+ Univision/University of Houston/Latino Decisions/North Star Opinion Research—725RV—Kelly 51 · McSally 39D+12——Release
Oct 22–25, 20202020 United States Senate special election in Arizona (2020)B OH Predictive Insights—716LV—Kelly 50 · McSally 45D+5——Release
Oct 22–25, 20202020 United States Senate special election in Arizona (2020)C+ Justice Collaborative ProjectThe Justice Collaborative Project874LV—Kelly 50 · McSally 40D+10——Release
Oct 19–24, 20202020 United States Senate election in New Jersey (2020)D Rutgers University—851LV—Booker 61 · Mehta 31D+30——Release
Oct 19–24, 20202020 United States Senate election in Montana (2020)C Montana State University Billings—546LV—Bullock 48 · Daines 47D+1——Release
Oct 24, 20202020 United States Senate election in Michigan (2020)B− Gravis Marketing—679LV—Peters 52 · James 41D+11——Release
Oct 21–24, 20202020 United States Senate election in Iowa (2020)D RABA Research—693LV—Greenfield 51 · Ernst 45D+6——Release
Oct 15–24, 20202020 United States Senate special election in Arizona (2020)A− Y2 Analytics—700LV—Kelly 51 · McSally 47D+4——Release
Oct 21–24, 20202020 United States Senate special election in Arizona (2020)C+ Patinkin Research Strategies—729LV—Kelly 53 · McSally 46D+7——Release
Oct 20–23, 20202020 United States Senate election in North Carolina (2020)B− CBS News/YouGov—1,022LV—Cunningham 49 · Tillis 43D+6——Release
Oct 23, 20202020 United States Senate election in Mississippi (2020)C+ The Progress Campaign——V—Espy 43 · Hyde-Smith 48R+5——Release
Oct 21–23, 20202020 United States Senate election in Alabama (2020)A+ Cygnal—645LV—Jones 41 · Tuberville 55R+14——Release
Oct 13–22, 20202020 United States Senate election in Virginia (2020)B− Virginia Commonwealth University—709LV—Warner 55 · Gade 38D+17——Release
Oct 20–22, 20202020 United States Senate election in Tennessee (2020)A+ Cygnal—610LV—Bradshaw 36 · Hagerty 56R+20——Release
Oct 20–22, 20202020 United States Senate election in North Carolina (2020)B Trafalgar Group—1,098LV—Cunningham 47 · Tillis 49R+2——Release
Oct 21–22, 20202020 United States Senate election in Michigan (2020)B+ Public Policy PollingThe American Bridge PAC804V—Peters 52 · James 43D+9——Release
Oct 19–22, 20202020 United States Senate special election in Arizona (2020)B Susquehanna Polling & Research, Inc.The American Greatness PAC500LV—Kelly 47 · McSally 50R+3——Release
Oct 20–21, 20202020 United States Senate election in North Carolina (2020)B+ Rasmussen ReportsPulse Opinion Research800LV—Cunningham 45 · Tillis 45Even——Release
Oct 19–21, 20202020 United States Senate election in Nebraska (2020)A+ Cygnal—625LV—Janicek 18 · Sasse 47R+29——Release
Oct 14–21, 20202020 United States Senate election in Massachusetts (2020)B YouGovUMass Amherst713LV—Markey 65 · O'Connor 26D+39——Release
Oct 15–21, 20202020 United States Senate election in Iowa (2020)Not averagedB+ RMG Research—800LV—Greenfield 45 · Ernst 45Even——Release
Oct 15–21, 20202020 United States Senate election in Iowa (2020)Not averagedB+ RMG Research—800LV—Greenfield 48 · Ernst 41D+7——Release
Oct 15–21, 20202020 United States Senate election in Iowa (2020)B+ RMG Research—800LV—Greenfield 46 · Ernst 43D+3——Release
Oct 19–21, 20202020 United States Senate election in Iowa (2020)A+ Emerson College—435LV—Greenfield 46 · Ernst 51R+5——Release
Oct 14–21, 20202020 United States Senate special election in Arizona (2020)B+ IpsosReuters658LV—Kelly 51 · McSally 43D+8——Release
Oct 11–20, 20202020 United States Senate election in Texas (2020)C Morning Consult—3,347LV—Hegar 41 · Cornyn 46R+5——Release
Oct 13–20, 20202020 United States Senate election in Texas (2020)B University of Texas at Tyler/Dallas Morning News—925LV—Hegar 34 · Cornyn 42R+8——Release
Oct 13–20, 20202020 United States Senate election in Texas (2020)B YouGov/University of Houston—1,000LV—Hegar 42 · Cornyn 49R+7——Release
Oct 17–20, 20202020 United States Senate election in Texas (2020)C− Citizen Data—1,000LV—Hegar 41 · Cornyn 41Even——Release
Oct 11–20, 20202020 United States Senate election in South Carolina (2020)C Morning Consult—926LV—Harrison 47 · Graham 45D+2——Release
Showing 2,401–2,450 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)