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.

Clear all

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
Jun 22–28, 20162016 United States Senate election in New York (2016)A Siena College—803V—Schumer 66 · Long 23D+43——Release
Jun 24–28, 20162016 United States Senate election in New Hampshire (2016)C+ American Research Group—533V—Hassan 42 · Ayotte 51R+9——Release
Jun 24–28, 20162016 United States Senate election in Iowa (2016)C+ Loras College—600V—Judge 45 · Grassley 46R+1——Release
Jun 25–27, 20162016 United States Senate election in Florida (2016)A SurveyUSABay News 91,678V—Murphy 43 · Rubio 43Even——Release
Jun 22–23, 20162016 United States Senate election in Wisconsin (2016)B+ Public Policy Polling—843V—Feingold 50 · Johnson 37D+13——Release
Jun 22–23, 20162016 United States Senate election in Pennsylvania (2016)B+ Public Policy Polling—980V—McGinty 39 · Toomey 40R+1——Release
Jun 22–23, 20162016 United States Senate election in Ohio (2016)B+ Public Policy Polling—708V—Strickland 39 · Portman 40R+1——Release
Jun 22–23, 20162016 United States Senate election in New Hampshire (2016)B+ Public Policy Polling—578V—Hassan 44 · Ayotte 42D+2——Release
Jun 22–23, 20162016 United States Senate election in Iowa (2016)B+ Public Policy Polling—897V—Judge 39 · Grassley 46R+7——Release
Jun 22–23, 20162016 United States Senate election in Arizona (2016)B+ Public Policy Polling—691V—Kirkpatrick 40 · McCain 42R+2——Release
Jun 20–21, 20162016 United States Senate election in North Carolina (2016)B+ Public Policy Polling—947V—Ross 37 · Burr 40R+3——Release
Jun 21, 20162016 United States Senate election in Arkansas (2016)A− Hendrix CollegeTalk Business751V—Eldridge 29 · Boozman 51R+22——Release
Jun 11–20, 20162016 United States Senate election in Wisconsin (2016)— Greenberg Quinlan Rosner - Democracy Corps—300V—Feingold 46 · Johnson 45D+1——Release
Jun 11–20, 20162016 United States Senate election in Pennsylvania (2016)— Greenberg Quinlan Rosner - Democracy Corps—300V—McGinty 38 · Toomey 46R+8——Release
Jun 11–20, 20162016 United States Senate election in Ohio (2016)— Greenberg Quinlan Rosner - Democracy Corps—300V—Strickland 43 · Portman 40D+3——Release
Jun 11–20, 20162016 United States Senate election in North Carolina (2016)— Greenberg Quinlan Rosner - Democracy Corps—300V—Ross 38 · Burr 36D+2——Release
Jun 11–20, 20162016 United States Senate election in New Hampshire (2016)— Greenberg Quinlan Rosner - Democracy Corps—300V—Hassan 47 · Ayotte 46D+1——Release
Jun 11–20, 20162016 United States Senate election in Nevada (2016)C+ GQRDemocracy Corps300LV—Masto 41 · Heck 46R+5——Release
Jun 11–20, 20162016 United States Senate election in Arizona (2016)— Greenberg Quinlan Rosner - Democracy Corps—300V—Kirkpatrick 42 · McCain 44R+2——Release
Jun 8–19, 20162016 United States Senate election in Pennsylvania (2016)A− Quinnipiac University—950V—McGinty 40 · Toomey 49R+9——Release
Jun 8–19, 20162016 United States Senate election in Ohio (2016)A− Quinnipiac University—971V—Strickland 42 · Portman 42Even——Release
Jun 8–19, 20162016 United States Senate election in Florida (2016)A− Quinnipiac University—975V—Murphy 40 · Rubio 47R+7——Release
Jun 6–19, 20162016 United States Senate election in Arizona (2016)C+ Behavior Research Center—448V—Kirkpatrick 31 · McCain 40R+9——Release
Jun 15–16, 20162016 United States Senate election in New Hampshire (2016)C Global Strategy Group—400V—Hassan 49 · Ayotte 45D+4——Release
Jun 15–16, 20162016 United States Senate election in Florida (2016)B+ Public Policy Polling—508V—Murphy 42 · Rubio 41D+1——Release
Jun 9–13, 20162016 United States Senate election in Iowa (2016)B+ Public Policy Polling—630V—Judge 41 · Grassley 48R+7——Release
Jun 9–12, 20162016 United States Senate election in Wisconsin (2016)Not averagedB+ Marquette University—800RV—Feingold 45 · Johnson 41D+4——Release
Jun 9–12, 20162016 United States Senate election in Wisconsin (2016)B+ Marquette University—666LV—Feingold 51 · Johnson 42D+9——Release
Jun 8–9, 20162016 United States Senate election in Wisconsin (2016)B+ Public Policy Polling—853V—Feingold 51 · Johnson 41D+10——Release
Jun 8–9, 20162016 United States Senate election in Pennsylvania (2016)B+ Public Policy Polling—965V—McGinty 42 · Toomey 45R+3——Release
Jun 8–9, 20162016 United States Senate election in Ohio (2016)B+ Public Policy Polling—781V—Strickland 42 · Portman 46R+4——Release
Jun 8–9, 20162016 United States Senate election in New Hampshire (2016)B+ Public Policy Polling—649V—Hassan 47 · Ayotte 44D+3——Release
Jun 8–9, 20162016 United States Senate election in Arizona (2016)B+ Public Policy Polling—747V—Kirkpatrick 43 · McCain 41D+2——Release
Jun 6–8, 20162016 United States Senate election in Utah (2016)A SurveyUSA—1,238V—Snow 37 · Lee 51R+14——Release
Jun 3–5, 20162016 United States Senate election in Pennsylvania (2016)B+ Public Policy Polling—1,106V—McGinty 38 · Toomey 41R+3——Release
Jun 2–5, 20162016 United States Senate election in Florida (2016)B+ Public Policy Polling—737V—Murphy 44 · Rubio 43D+1——Release
Jun 1–5, 20162016 United States Senate election in Connecticut (2016)A− Quinnipiac University—1,330V—Blumenthal 60 · Carter 30D+30——Release
May 18–Jun 4, 20162016 United States Senate election in Idaho (2016)A+ Dan Jones & Associates—603V—Sturgill 25 · Crapo 48R+23——Release
May 27–30, 20162016 United States Senate election in Georgia (2016)B+ Public Policy Polling—724V—Barksdale 35 · Isakson 47R+12——Release
May 25–28, 20162016 United States Senate election in New Hampshire (2016)— Boston Herald/Franklin Pierce University—405V—Hassan 47 · Ayotte 48R+1——Release
May 22–26, 20162016 United States Senate election in New York (2016)A Siena College—825V—Schumer 64 · Long 22D+42——Release
May 25–26, 20162016 United States Senate election in New Hampshire (2016)C Global Strategy Group—400V—Hassan 45 · Ayotte 43D+2——Release
May 24–25, 20162016 United States Senate election in Nevada (2016)B− Gravis Marketing—1,637RV—Masto 45 · Heck 43D+2——Release
May 20–22, 20162016 United States Senate election in North Carolina (2016)B+ Public Policy Polling—928V—Ross 36 · Burr 39R+3——Release
May 12–15, 20162016 United States Senate election in New Hampshire (2016)A MassINC Polling GroupWBUR501V—Hassan 48 · Ayotte 46D+2——Release
May 13–15, 20162016 United States Senate election in Arizona (2016)B+ Public Policy Polling—896V—Kirkpatrick 36 · McCain 42R+6——Release
Apr 27–May 8, 20162016 United States Senate election in Pennsylvania (2016)A− Quinnipiac University—1,077V—McGinty 44 · Toomey 45R+1——Release
Apr 27–May 8, 20162016 United States Senate election in Ohio (2016)A− Quinnipiac University—1,042V—Strickland 43 · Portman 42D+1——Release
Apr 26–27, 20162016 United States Senate election in Ohio (2016)B+ Public Policy Polling—799V—Strickland 38 · Portman 38Even——Release
Apr 24–27, 20162016 United States Senate election in New York (2016)A Siena College—802V—Schumer 64 · Long 24D+40——Release
Showing 4,451–4,500 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)