Who ran for Governor of Wisconsin in the August 11, 2026 primary?

Democratic primary

Republican primary

Independent — did not run in the primary

Polls

18 published polls of the Governor of Wisconsin, one of which is a straw poll rather than a poll of voters, newest first. Figures are shown exactly as each pollster published them. We don’t average polls— an average is a number no pollster published, and doing it properly takes modelling we don’t do. For averages, use the trackers below.

1. Marquette Law School Poll

   2026-07-22 – 2026-07-29

   Democratic primary · n=407 · Democratic primary voters · MoE ±6.6 percentage points

   • Francesca Hong38%
   • Undecided34%
   • Mandela Barnes16%
   • David Crowley7%
   • Joel Brennan2%
   • Kelda Roys2%

   Fielded July 22-29, so all but the final day of interviewing was completed BEFORE the July 28 televised debate — this is not a post-debate poll. Marquette's previous release (fielded July 8-16) had Hong 26%, Barnes 15%, Brennan 2%, Roys 1% and 45% undecided, and did not include David Crowley, who had left the race before re-entering it.

   wisn.com →wbay.com →law.marquette.edu →

2. Public Policy Polling (D) [partisan/Democratic-affiliated pollster]

   2026-07-20 – 2026-07-22

   Republican primary · n=708 · Likely voters

   • Tom Tiffany35%
   • Undecided28%
   • Other candidate15%
   • noteFull breakdown available via Wikipedia table; conducted by a Democratic-aligned pollster.

   en.wikipedia.org →

3. Marquette University Law School Poll

   2026-07-08 – 2026-07-16

   Democratic primary · n=430 · Registered voters (Democratic primary voters) · MoE +/- 6.1%

   • Undecided45-48%
   • Francesca Hong26-27%
   • Mandela Barnes15-18%
   • Joel Brennan5%
   • Kelda Roys2%

   Sara Rodriguez excluded from this survey after dropping out (then briefly re-entering) the race. Fourth consecutive Marquette poll in which Hong led.

   wpr.org →usatoday.com →law.marquette.edu →

4. Generic Democrat vs. Tom Tiffany (Marquette hypothetical head-to-heads)

   2026-07-08 – 2026-07-16

   Marquette University Law School Poll · General election matchup · n=838

   • Mandela Barnes vs TiffanyBarnes +4 (44-40)
   • Francesca Hong vs TiffanyHong trails by 3
   • Joel Brennan vs TiffanyBrennan trails by 3
   • Kelda Roys vs TiffanyRoys trails by 4
   • noteAmong registered voters, Tiffany led Hong 43-40; tied 44-44 among likely voters.

   usatoday.com →wpr.org →

5. Wedgewood Polls

   2026-07-06

   Democratic primary · n=413 · Likely voters · MoE +/- 5.3%

   • Francesca Hong30%
   • Mandela Barnes28%
   • Other23%
   • Sara Rodriguez19%

   270towin.com →

6. Mandela Barnes vs. Tom Tiffany

   2026-07-06

   Wedgewood Polls · General election matchup · n=707 · Likely voters · MoE +/- 4.4%

   • Barnes48%
   • Tiffany44%
   • Other8%

   270towin.com →

7. Sara Rodriguez vs. Tom Tiffany

   2026-07-06

   Wedgewood Polls · General election matchup · n=707

   • Rodriguez47%
   • Tiffany42%
   • Other11%

   270towin.com →

8. Francesca Hong vs. Tom Tiffany

   2026-07-06

   Wedgewood Polls · General election matchup · n=707

   • Hong47%
   • Tiffany44%
   • Other9%

   270towin.com →

9. Mandela Barnes vs. Tom Tiffany

   2026-03-23

   TIPP · General election matchup · n=1175 · Likely voters · MoE +/- 2.9%

   • Barnes43%
   • Tiffany41%
   • Other16%

   270towin.com →

10. Sara Rodriguez vs. Tom Tiffany

    2026-03-23

    TIPP · General election matchup · n=1175

    • Rodriguez44%
    • Tiffany41%
    • Other15%

    270towin.com →

11. Francesca Hong vs. Tom Tiffany

    2026-03-23

    TIPP · General election matchup · n=1175

    • Tiffany43%
    • Hong40%
    • Other17%

    270towin.com →

12. Marquette University Law School Poll

    2026-03-11 – 2026-03-18

    Democratic primary · n=393 · Registered voters (Democratic primary voters) · MoE +/- 6.7%

    • Undecided/Other69%
    • Francesca Hong14%
    • Mandela Barnes11%
    • David Crowley3%
    • Joel Brennan2%
    • Kelda Roys1%

    270towin.com →wihpca.org →

13. Marquette University Law School Poll

    2026-03-11 – 2026-03-18

    Republican primary · n=396 · MoE +/- 6.3%

    • Undecided/Other54%
    • Tom Tiffany40%
    • Andy Manske6%

    wihpca.org →270towin.com →

14. Marquette University Law School Poll

    2026-02-11 – 2026-02-19

    Democratic primary · n=394 · Registered voters (Democratic primary voters) · MoE +/- 6.3%

    • Undecided65%
    • Francesca Hong11%
    • Mandela Barnes10%
    • Sara Rodriguez6%
    • David Crowley3%
    • Joel Brennan2%
    • Missy Hughes2%
    • Kelda Roys1%
    • Brett Hulsey1%

    fox6now.com →x.com →

15. Marquette University Law School Poll

    2026-02-11 – 2026-02-19

    Republican primary · n=371 · MoE +/- 6.4%

    • Undecided63%
    • Tom Tiffany35%
    • Andy Manske2%

    fox6now.com →today.marquette.edu →

16. TIPP

    2026-02-17

    Democratic primary · n=646 · Registered voters

    • Other/Undecided45%
    • Mandela Barnes28%
    • Sara Rodriguez20%
    • Francesca Hong5%
    • Joel Brennan2%
    • David Crowley0%

    270towin.com →

17. Badger Battleground Poll (Platform Communications)

    2025-09-28 – 2025-09-30

    Democratic and Republican primary · n=500 · General population, phone (cell + landline)

    Democratic

    • Undecided38%
    • Mandela Barnes16%
    • Sara Rodriguez8%
    • David Crowley7%
    • Josh Kaul (undeclared)7%
    • Francesca Hong4%
    • Kelda Roys4%
    • Missy Hughes2%
    • Ben Wikler (undeclared)1%

    Republican

    • Undecided34%
    • Tom Tiffany30%
    • Eric Hovde (undeclared)14%
    • Tim Michels (undeclared)9%
    • Josh Schoemann4%

    tmj4.com →

18. WisPolitics / Democratic Party of Wisconsin convention straw poll

    2026-06-13 – 2026-06-14

    Non-scientific straw poll (Democratic activists/delegates) · n=~600 delegates/guests

    Not a scientific poll — self-selected participants

    • Sara Rodriguez27.5%
    • Francesca Hong23.1%
    • Kelda Roys19%
    • David Crowley13.1%
    • Mandela Barnes6.9%
    • Missy Hughes1.6%

    Not a scientific poll — reflects only convention-attending party activists.

    wispolitics.com →wisconsinwatch.org →youtube.com →