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
Jan 8–20, 20202020 United States Senate election in Michigan (2020)C− Baldwin Wallace University—1,023RV—Peters 42 · James 32D+10——Release
Jan 11–15, 20202020 United States Senate election in North Carolina (2020)B Public Opinion Strategies—800LV—Cunningham 44 · Tillis 48R+4——Release
Jan 8–13, 20202020 United States Senate election in North Carolina (2020)B ALG ResearchEnd Citizens United700LV—Cunningham 44 · Tillis 42D+2——Release
Jan 8–13, 20202020 United States Senate election in Kentucky (2020)B+ Garin-Hart-Yang Research GroupMcGrath's campaign802LV—McGrath 40 · McConnell 43R+3——Release
Jan 3–7, 20202020 United States Senate election in Mississippi (2020)C+ Chism Strategies—618LV—Espy 36 · Hyde-Smith 44R+8——Release
Jan 3–7, 20202020 United States Senate election in Michigan (2020)B Glengariff Group—600LV—Peters 44 · James 40D+4——Release
Jan 2–4, 20202020 United States Senate special election in Arizona (2020)B+ Public Policy Polling—760V—Kelly 46 · McSally 42D+4——Release
Dec 16–18, 20192020 United States Senate election in Alabama (2020)C JMC Analytics—525LV—Jones 40 · Tuberville 47R+7——Release
Dec 13–15, 20192020 United States Senate election in Iowa (2020)B+ Public Policy Pollingthe End Citizens United944V—Greenfield 41 · Ernst 47R+6——Release
Dec 6–11, 20192020 United States Senate election in South Carolina (2020)B+ Change Research—998LV—Harrison 45 · Graham 47R+2——Release
Dec 3–4, 20192020 United States Senate special election in Arizona (2020)B OH Predictive Insights—628LV—Kelly 47 · McSally 44D+3——Release
Nov 9–21, 20192020 United States Senate election in Texas (2020)C Beacon Research—601RV—Hegar 30 · Cornyn 44R+14——Release
Oct 31–Nov 3, 20192020 United States Senate election in Michigan (2020)A+ Emerson College—1,051RV—Peters 46 · James 40D+6——Release
Oct 25–28, 20192020 United States Senate special election in Arizona (2020)A+ Emerson College—904RV—Kelly 46 · McSally 45D+1——Release
Oct 15–21, 20192020 United States Senate election in South Carolina (2020)— Benchmark ResearchSecurity in Strength PAC450RV—Harrison 30 · Graham 53R+23——Release
Oct 10–16, 20192020 United States Senate election in Michigan (2020)— Hodas & Associates—600LV—Peters 48 · James 35D+13——Release
Oct 13–16, 20192020 United States Senate election in Iowa (2020)A+ Emerson College—888RV—Greenfield 40 · Ernst 47R+7——Release
Oct 10–14, 20192020 United States Senate election in Colorado (2020)B− Keating Research, Inc.—500LV—Hickenlooper 53 · Gardner 42D+11——Release
Oct 7–10, 20192020 United States Senate election in Michigan (2020)C− Marketing Resource Group—600LV—Peters 43 · James 40D+3——Release
Sep 29–Oct 7, 20192020 United States Senate election in North Carolina (2020)C− Meredith College—996RV—Cunningham 33 · Tillis 33Even——Release
Sep 27–28, 20192020 United States Senate special election in Arizona (2020)B+ Change Research—856RV—Kelly 47 · McSally 45D+2——Release
Sep 24–26, 20192020 United States Senate election in Michigan (2020)— Target-InsyghtPMIRS News804LV—Peters 53 · James 37D+16——Release
Sep 21–24, 20192020 United States Senate election in Michigan (2020)— Denno Research—600LV—Peters 40 · James 39D+1——Release
Sep 17–21, 20192020 United States Senate election in South Carolina (2020)B+ Change ResearchCollective PAC809LV—Harrison 43 · Graham 50R+7——Release
Sep 16–17, 20192020 United States Senate election in North Carolina (2020)B+ Public Policy PollingEnd Citizens United628V—Cunningham 45 · Tillis 43D+2——Release
Sep 9–12, 20192020 United States Senate special election in Arizona (2020)B− Bendixen & Amandi International—520RV—Kelly 42 · McSally 42Even——Release
Aug 16–19, 20192020 United States Senate election in Colorado (2020)A+ Emerson College—1,000RV—Hickenlooper 53 · Gardner 40D+13——Release
Aug 13–14, 20192020 United States Senate election in Colorado (2020)C Global Strategy GroupMike Johnston617LV—Hickenlooper 49 · Gardner 39D+10——Release
Aug 13–14, 20192020 United States Senate special election in Arizona (2020)B OH Predictive Insights—600LV—Kelly 46 · McSally 41D+5——Release
Aug 8–11, 20192020 United States Senate election in Colorado (2020)B+ Public Policy Polling314 Action739V—Hickenlooper 51 · Gardner 38D+13——Release
Jul 29–31, 20192020 United States Senate election in North Carolina (2020)B+ Fabrizio, Lee & AssociatesAARP600LV—Cunningham 42 · Tillis 41D+1——Release
Jul 29–31, 20192020 United States Senate election in Maine (2020)B+ Fabrizio, Lee & AssociatesAARP600LV—Gideon 35 · Collins 52R+17——Release
Jul 29–31, 20192020 United States Senate election in Kentucky (2020)B+ Fabrizio, Lee & AssociatesAARP600LV—McGrath 46 · McConnell 47R+1——Release
Jul 29–31, 20192020 United States Senate special election in Arizona (2020)B+ Fabrizio, Lee & AssociatesAARP600LV—Kelly 44 · McSally 45R+1——Release
Nov 3–5, 20182018 United States Senate election in Texas (2018)B Trafalgar Group—2,135V—O'Rourke 43 · Cruz 52R+9——Release
Nov 1–5, 20182018 United States Senate election in Montana (2018)D HarrisX—500V—Tester 50 · Rosendale 42D+8——Release
Nov 2–5, 20182018 United States Senate election in Montana (2018)B Trafalgar Group—953V—Tester 50 · Rosendale 49D+1——Release
Nov 3–5, 20182018 United States Senate election in Missouri (2018)D HarrisX—600V—McCaskill 45 · Hawley 46R+1——Release
Nov 2–5, 20182018 United States Senate election in Michigan (2018)B Trafalgar Group—1,817V—Stabenow 53 · James 44D+9——Release
Nov 5, 20182018 United States Senate election in Michigan (2018)B+ Mitchell Research & Communications—827V—Stabenow 49 · James 46D+3——Release
Nov 3–5, 20182018 United States Senate election in Indiana (2018)D HarrisX—600V—Donnelly 42 · Braun 43R+1——Release
Nov 3–5, 20182018 United States Senate election in Florida (2018)D HarrisX—600V—Nelson 48 · Scott 48Even——Release
Nov 4–5, 20182018 United States Senate election in Florida (2018)B Trafalgar Group—1,484V—Nelson 47 · Scott 49R+2——Release
Nov 3–5, 20182018 United States Senate election in Arizona (2018)D HarrisX—600V—Sinema 49 · McSally 44D+5——Release
Nov 4–5, 20182018 United States Senate election in Arizona (2018)B Trafalgar Group—1,217V—Sinema 45 · McSally 47R+2——Release
Nov 2–4, 20182018 United States Senate election in Wyoming (2018)B+ Change Research—858V—Trauner 31 · Barrasso 60R+29——Release
Nov 2–4, 20182018 United States Senate election in Pennsylvania (2018)B+ Change Research—1,833V—Jr. 51 · Barletta 44D+7——Release
Nov 2–4, 20182018 United States Senate election in Ohio (2018)B+ Change Research—923V—Brown 53 · Renacci 43D+10——Release
Oct 29–Nov 4, 20182018 United States Senate election in New Jersey (2018)A− Quinnipiac University—1,115V—Menendez 55 · Hugin 40D+15——Release
Nov 2–4, 20182018 United States Senate election in New Jersey (2018)B+ Change Research—1,006V—Menendez 51 · Hugin 41D+10——Release
Showing 3,001–3,050 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)