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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
Aug 18–20, 20242024 United States Senate election in Montana (2024)B Public Opinion Strategiesthe Montana Republican Party500LV—Tester 44 · Sheehy 51R+7——Release
Aug 14–20, 20242024 United States Senate election in Maryland (2024)B Fabrizio Ward/Impact ResearchAARP700LV—Alsobrooks 46 · Hogan 46Even——Release
Aug 15–19, 20242024 United States Senate election in Maine (2024)C University of New Hampshire—951LV—Costello 9 · Kouzounas 33R+24——Release
Aug 13–18, 20242024 United States Senate election in Nevada (2024)B+ Rasmussen ReportsNumbersUSA980LV—Rosen 50 · Brown 39D+11——Release
Aug 13–17, 20242024 United States Senate election in Ohio (2024)B+ Rasmussen ReportsNumbersUSA1,267LV—Brown 47 · Moreno 42D+5——Release
Aug 12–16, 20242024 United States Senate election in Virginia (2024)B− Roanoke College—691LV—Kaine 49 · Cao 38D+11——Release
Aug 5–16, 20242024 United States Senate election in Texas (2024)B YouGovthe University of Houston and Texas Southern University1,365LV—Allred 45 · Cruz 47R+2——Release
Aug 8–16, 20242024 United States Senate election in Missouri (2024)B YouGovSaint Louis University900LV—Kunce 42 · Hawley 53R+11——Release
Aug 12–16, 20242024 United States Senate election in Arizona (2024)A Noble Predictive Insights—1,003RV—Gallego 47 · Lake 40D+7——Release
Aug 12–15, 20242024 United States Senate election in Pennsylvania (2024)C− Redfield & Wilton StrategiesThe Daily Telegraph825LV—Jr. 44 · McCormick 36D+8——Release
Aug 14–15, 20242024 United States Senate election in Pennsylvania (2024)Not averagedA+ Cygnal—800LV—Jr. 42 · McCormick 38D+4——Release
Aug 14–15, 20242024 United States Senate election in Pennsylvania (2024)A+ Cygnal—800LV—Jr. 46 · McCormick 42D+4——Release
Aug 12–15, 20242024 United States Senate election in New Mexico (2024)C− Redfield & Wilton StrategiesThe Daily Telegraph453LV—Heinrich 42 · Domenici 36D+6——Release
Aug 13–15, 20242024 United States Senate election in New Jersey (2024)B National ResearchBashaw's campaign600LV—Kim 38 · Bashaw 33D+5——Release
Aug 12–15, 20242024 United States Senate election in Nevada (2024)A The New York Times/Siena University—677LV—Rosen 49 · Brown 40D+9——Release
Aug 12–15, 20242024 United States Senate election in Nevada (2024)Not averagedA The New York Times/Siena University—677RV—Rosen 48 · Brown 37D+11——Release
Aug 12–15, 20242024 United States Senate election in Nevada (2024)C− Redfield & Wilton StrategiesThe Daily Telegraph536LV—Rosen 41 · Brown 37D+4——Release
Aug 8–15, 20242024 United States Senate election in Arizona (2024)A The New York Times/Siena University—677LV—Gallego 51 · Lake 42D+9——Release
Aug 8–15, 20242024 United States Senate election in Arizona (2024)Not averagedA The New York Times/Siena University—677RV—Gallego 49 · Lake 41D+8——Release
Aug 12–15, 20242024 United States Senate election in Arizona (2024)C− Redfield & Wilton StrategiesThe Daily Telegraph592LV—Gallego 44 · Lake 39D+5——Release
Aug 12–14, 20242024 United States Senate election in Wisconsin (2024)A− TIPP InsightsAmerican Greatness976LV—Baldwin 50 · Hovde 43D+7——Release
Aug 12–14, 20242024 United States Senate election in Wisconsin (2024)Not averagedA− TIPP InsightsAmerican Greatness1,015RV—Baldwin 50 · Hovde 42D+8——Release
Aug 13–14, 20242024 United States Senate election in Pennsylvania (2024)A+ Emerson College—1,000LV—Jr. 48 · McCormick 44D+4——Release
Aug 7–14, 20242024 United States Senate election in Nevada (2024)A− Strategies 360—350RV—Rosen 50 · Brown 38D+12——Release
Aug 6–14, 20242024 United States Senate election in Montana (2024)B+ RMG Researchthe Napolitan Institute540RV—Tester 49 · Sheehy 44D+5——Release
Aug 8–12, 20242024 United States Senate election in Pennsylvania (2024)A− Quinnipiac University—1,738LV—Jr. 52 · McCormick 44D+8——Release
Jul 20–Aug 12, 20242024 United States Senate election in Ohio (2024)A− ActiVote—400LV—Brown 52 · Moreno 48D+5——Release
Aug 10–12, 20242024 United States Senate election in Montana (2024)C American Pulse Research & PollingKULR-TV538RV—Tester 45 · Sheehy 51R+6——Release
Jul 16–Aug 12, 20242024 United States Senate elections in California (2024)A− ActiVote—400LV—Schiff 66 · Garvey 34D+32——Release
Aug 8–11, 20242024 United States Senate election in Wisconsin (2024)C− The Bullfinch GroupThe Independent Center500RV—Baldwin 50 · Hovde 41D+9——Release
Jul 31–Aug 11, 20242024 United States Senate election in Pennsylvania (2024)B− Franklin & Marshall College—920RV—Jr. 48 · McCormick 36D+12——Release
Aug 8–11, 20242024 United States Senate election in Pennsylvania (2024)C− The Bullfinch Groupthe Independent Center500RV—Jr. 51 · McCormick 39D+12——Release
Aug 7–11, 20242024 United States Senate election in Michigan (2024)B Fabrizio Ward/Impact ResearchAARP600RV—Slotkin 47 · Rogers 44D+3——Release
Aug 8–11, 20242024 United States Senate election in Michigan (2024)C− The Bullfinch Groupthe Independent Center500RV—Slotkin 48 · Rogers 38D+10——Release
Jul 31–Aug 11, 20242024 United States Senate elections in California (2024)B− UC Berkeleythe Los Angeles Times3,765LV—Schiff 53 · Garvey 33D+20——Release
Aug 2–9, 20242024 United States Senate election in Utah (2024)Not averagedD HarrisXDeseret News and the Hinckley Institute of Politics800RV—Gleich 29 · Curtis 71R+42——Release
Aug 2–9, 20242024 United States Senate election in Utah (2024)D HarrisXDeseret News and the Hinckley Institute of Politics800RV—Gleich 22 · Curtis 56R+34——Release
Aug 6–9, 20242024 United States Senate election in Pennsylvania (2024)A The New York Times/Siena University—693LV—Jr. 51 · McCormick 37D+14——Release
Aug 6–9, 20242024 United States Senate election in Pennsylvania (2024)Not averagedA The New York Times/Siena University—693RV—Jr. 50 · McCormick 36D+14——Release
Aug 5–8, 20242024 United States Senate election in Wisconsin (2024)A The New York Times/Siena University—661LV—Baldwin 51 · Hovde 44D+7——Release
Aug 5–8, 20242024 United States Senate election in Wisconsin (2024)Not averagedA The New York Times/Siena University—661RV—Baldwin 51 · Hovde 43D+8——Release
Aug 5–8, 20242024 United States Senate election in Michigan (2024)A The New York Times/Siena University—619LV—Slotkin 46 · Rogers 43D+3——Release
Aug 5–8, 20242024 United States Senate election in Michigan (2024)Not averagedA The New York Times/Siena University—619RV—Slotkin 42 · Rogers 41D+1——Release
Aug 5–6, 20242024 United States Senate election in Montana (2024)A+ Emerson CollegeThe Hill1,000LV—Tester 46 · Sheehy 48R+2——Release
Jul 8–Aug 5, 20242024 United States Senate election in New York (2024)A− ActiVote—400LV—Gillibrand 63 · Sapraicone 37D+26——Release
Aug 3–5, 20242024 United States Senate election in Nevada (2024)— Providence Polling—991LV—Rosen 52 · Brown 40D+12——Release
Jul 30–Aug 5, 20242024 United States Senate election in Arizona (2024)C HighGround Public Affairs—500LV—Gallego 50 · Lake 39D+11——Release
Jul 31–Aug 5, 20242024 United States Senate election in Arizona (2024)— Peak Insightsthe National Republican Senatorial Committee800LV—Gallego 46 · Lake 46Even——Release
Jul 31–Aug 3, 20242024 United States Senate election in Pennsylvania (2024)C− Redfield & Wilton StrategiesThe Daily Telegraph743LV—Jr. 45 · McCormick 40D+5——Release
Jul 31–Aug 3, 20242024 United States Senate election in New Mexico (2024)C− Redfield & Wilton StrategiesThe Daily Telegraph493LV—Heinrich 40 · Domenici 34D+6——Release
Showing 1,301–1,350 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)