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.
Matching polls
4,582Senate polls.
Polls per month
287
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November, so far
Latest poll in the database ended Nov 2, 2026. Source: 99chambers polls database
| Dates | Question | Pollster | Sponsor | Sample | Pop. | Mode | Result | Margin | Adjusted | vs result | Source |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Oct 15–17, 2018 | 2018 United States Senate election in Minnesota (2018) | A Mason-Dixon Polling & Research, Inc. | — | 800 | V | — | Klobuchar 56 · Newberger 33 | D+23 | — | — | Release |
| Oct 14–17, 2018 | 2018 United States Senate election in Indiana (2018) | A− American Viewpoint | — | 800 | V | — | Donnelly 40 · Braun 44 | R+4 | — | — | Release |
| Oct 16–17, 2018 | 2018 United States Senate election in Arizona (2018) | A− Data Orbital | — | 600 | V | — | Sinema 47 · McSally 41 | D+6 | — | — | Release |
| Oct 10–16, 2018 | 2018 United States Senate election in New York (2018) | A− Quinnipiac University | — | 852 | V | — | Gillibrand 58 · Farley 33 | D+25 | — | — | Release |
| Oct 10–16, 2018 | 2018 United States Senate election in New Jersey (2018) | A− Quinnipiac University | — | 873 | V | — | Menendez 51 · Hugin 44 | D+7 | — | — | Release |
| Oct 12–16, 2018 | 2018 United States Senate election in Indiana (2018) | B− Gravis Marketing | — | 377 | V | — | Donnelly 44 · Braun 40 | D+4 | — | — | Release |
| Oct 12–16, 2018 | 2018 United States Senate election in Indiana (2018) | A SurveyUSA | — | 816 | V | — | Donnelly 41 · Braun 40 | D+1 | — | — | Release |
| Oct 15–16, 2018 | 2018 United States Senate election in Florida (2018) | B St. Pete Polls | — | 1,974 | V | — | Nelson 47 · Scott 49 | R+2 | — | — | Release |
| Oct 13–15, 2018 | 2018 United States Senate election in West Virginia (2018) | B+ Vox Populi Polling | — | 789 | V | — | Manchin 53 · Morrisey 47 | D+6 | — | — | Release |
| Oct 11–15, 2018 | 2018 United States Senate election in New Jersey (2018) | A− Monmouth University Polling Institute | — | 527 | V | — | Menendez 49 · Hugin 40 | D+9 | — | — | Release |
| Oct 13–15, 2018 | 2018 United States Senate election in Indiana (2018) | B+ Vox Populi Polling | — | 783 | V | — | Donnelly 55 · Braun 45 | D+10 | — | — | Release |
| Oct 10–14, 2018 | 2018 United States Senate election in Texas (2018) | A− Tulchin Research | — | 600 | V | — | O'Rourke 45 · Cruz 49 | R+4 | — | — | Release |
| Oct 11–13, 2018 | 2018 United States Senate election in West Virginia (2018) | C+ The Polling Company | — | 600 | V | — | Manchin 49 · Morrisey 45 | D+4 | — | — | Release |
| Oct 8–13, 2018 | 2018 United States Senate election in Texas (2018) | B+ WPA Intelligence | — | 801 | V | — | O'Rourke 43 · Cruz 52 | R+9 | — | — | Release |
| Oct 9–13, 2018 | 2018 United States Senate election in Texas (2018)Not averaged | C SSRS | CNN | 862 | RV | — | O'Rourke 45 · Cruz 50 | R+5 | — | — | Release |
| Oct 9–13, 2018 | 2018 United States Senate election in Texas (2018) | C SSRS | CNN | 716 | LV | — | O'Rourke 45 · Cruz 52 | R+7 | — | — | Release |
| Oct 8–13, 2018 | 2018 United States Senate election in Tennessee (2018) | C SSRS | Vanderbilt University | 800 | V | — | Bredesen 44 · Blackburn 43 | D+1 | — | — | Release |
| Oct 8–13, 2018 | 2018 United States Senate election in Montana (2018) | C Montana State University Billings | — | 471 | V | — | Tester 47 · Rosendale 38 | D+9 | — | — | Release |
| Oct 11–13, 2018 | 2018 United States Senate election in Missouri (2018) | C+ The Polling Company | — | 600 | V | — | McCaskill 47 · Hawley 50 | R+3 | — | — | Release |
| Oct 12–13, 2018 | 2018 United States Senate special election in Minnesota (2018) | B+ Change Research | — | 1,413 | V | — | Smith 46 · Housley 43 | D+3 | — | — | Release |
| Oct 12–13, 2018 | 2018 United States Senate election in Minnesota (2018) | B+ Change Research | — | 1,413 | V | — | Klobuchar 50 · Newberger 41 | D+9 | — | — | Release |
| Oct 9–12, 2018 | 2018 United States Senate election in Tennessee (2018)Not averaged | D Targoz Market Research | — | 801 | RV | — | Bredesen 45 · Blackburn 44 | D+1 | — | — | Release |
| Oct 9–12, 2018 | 2018 United States Senate election in Tennessee (2018) | D Targoz Market Research | — | 558 | LV | — | Bredesen 48 · Blackburn 52 | R+4 | — | — | Release |
| Oct 10–11, 2018 | 2018 United States Senate election in Wisconsin (2018) | B+ Public Policy Polling | Protect Our Care | 816 | V | — | Baldwin 52 · Vukmir 42 | D+10 | — | — | Release |
| Oct 8–11, 2018 | 2018 United States Senate election in Texas (2018) | A The New York Times/Siena University | — | 800 | V | — | O'Rourke 43 · Cruz 51 | R+8 | — | — | Release |
| Oct 4–11, 2018 | 2018 United States Senate election in Tennessee (2018) | B+ Ipsos | — | 1,108 | V | — | Bredesen 44 · Blackburn 47 | R+3 | — | — | Release |
| Oct 8–11, 2018 | 2018 United States Senate election in Tennessee (2018) | A The New York Times/Siena University | — | 593 | V | — | Bredesen 40 · Blackburn 54 | R+14 | — | — | Release |
| Oct 7–10, 2018 | 2018 United States Senate election in Indiana (2018) | A− American Viewpoint | — | 800 | V | — | Donnelly 40 · Braun 44 | R+4 | — | — | Release |
| Oct 9–10, 2018 | 2018 United States Senate election in Arizona (2018) | B+ Change Research | — | 783 | V | — | Sinema 44 · McSally 44 | Even | — | — | Release |
| Oct 7–9, 2018 | 2018 United States Senate election in West Virginia (2018) | B Public Opinion Strategies | — | 600 | V | — | Manchin 41 · Morrisey 40 | D+1 | — | — | Release |
| Oct 4–9, 2018 | 2018 United States Senate election in Washington (2018) | B− Elway Research | Crosscut | 405 | RV | — | Cantwell 53 · Hutchison 39 | D+14 | — | — | Release |
| Oct 3–9, 2018 | 2018 United States Senate election in Utah (2018) | C University of Utah | — | 607 | V | — | Wilson 23 · Romney 59 | R+36 | — | — | Release |
| Oct 3–9, 2018 | 2018 United States Senate election in Texas (2018) | A− Quinnipiac University | — | 730 | V | — | O'Rourke 45 · Cruz 54 | R+9 | — | — | Release |
| Oct 5–9, 2018 | 2018 United States Senate election in Rhode Island (2018) | C SocialSphere | — | 502 | V | — | Whitehouse 56 · Flanders 32 | D+24 | — | — | Release |
| Oct 6–9, 2018 | 2018 United States Senate election in New Jersey (2018) | B National Research | — | 600 | V | — | Menendez 42 · Hugin 40 | D+2 | — | — | Release |
| Sep 8–Oct 8, 2018 | 2018 United States Senate election in Ohio (2018) | C− Baldwin Wallace University | — | 1,017 | V | — | Brown 50 · Renacci 33 | D+17 | — | — | Release |
| Oct 4–8, 2018 | 2018 United States Senate election in Ohio (2018) | A Suffolk University | — | 500 | V | — | Brown 54 · Renacci 36 | D+18 | — | — | Release |
| Oct 3–8, 2018 | 2018 United States Senate election in Connecticut (2018) | A− Quinnipiac University | — | 767 | V | — | Murphy 57 · Corey 42 | D+15 | — | — | Release |
| Oct 3–7, 2018 | 2018 United States Senate election in Wisconsin (2018)Not averaged | B+ Marquette University | — | 1,000 | RV | — | Baldwin 53 · Vukmir 42 | D+11 | — | — | Release |
| Oct 3–7, 2018 | 2018 United States Senate election in Wisconsin (2018) | B+ Marquette University | — | 799 | LV | — | Baldwin 53 · Vukmir 43 | D+10 | — | — | Release |
| Sep 27–Oct 7, 2018 | 2018 United States Senate election in Missouri (2018) | B+ Ipsos | — | 1,111 | V | — | McCaskill 44 · Hawley 45 | R+1 | — | — | Release |
| Sep 30–Oct 7, 2018 | 2018 United States Senate election in Michigan (2018) | B+ Mitchell Research & Communications | — | 654 | V | — | Stabenow 51 · James 42 | D+9 | — | — | Release |
| Oct 1–7, 2018 | 2018 United States Senate election in Massachusetts (2018)Not averaged | B UMass Lowell | — | 791 | RV | — | Warren 56 · Diehl 28 | D+28 | — | — | Release |
| Oct 1–7, 2018 | 2018 United States Senate election in Massachusetts (2018) | B UMass Lowell | — | 485 | LV | — | Warren 56 · Diehl 31 | D+25 | — | — | Release |
| Sep 27–Oct 6, 2018 | 2018 United States Senate election in Rhode Island (2018) | C University of New Hampshire | — | 503 | V | — | Whitehouse 57 · Flanders 33 | D+24 | — | — | Release |
| Sep 15–Oct 6, 2018 | 2018 United States Senate election in Montana (2018) | — Montana State University Bozeman | — | 2,079 | V | — | Tester 46 · Rosendale 43 | D+3 | — | — | Release |
| Oct 5–6, 2018 | 2018 United States Senate election in Missouri (2018) | — 1st Tuesday Campaigns | — | 1,052 | V | — | McCaskill 42 · Hawley 44 | R+2 | — | — | Release |
| Oct 1–6, 2018 | 2018 United States Senate election in Maryland (2018) | C+ Gonzales Research | — | 806 | V | — | Cardin 49 · Campbell 22 | D+27 | — | — | Release |
| Oct 1–5, 2018 | 2018 United States Senate election in Texas (2018) | A+ Emerson College | — | 500 | V | — | O'Rourke 42 · Cruz 47 | R+5 | — | — | Release |
| Oct 2–5, 2018 | 2018 United States Senate election in Texas (2018) | B YouGov | — | 881 | V | — | O'Rourke 44 · Cruz 50 | R+6 | — | — | Release |
Showing 3,251–3,300 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)