Wisconsin Governor 2026 Rep Primary

The Wisconsin Governor rep primary is scheduled for August 11, 2026. The model makes Tom Tiffany the heavy favorite at 96%, with Andy Manske at 4%. Tom Tiffany leads the field in reported fundraising and has the most tracked endorsements. Public polling is available for this race and feeds the forecast alongside fundraising, endorsements, and historical results.

Current win probabilities

  1. Tom Tiffany — 96%
  2. Andy Manske — 4%

Probabilities update daily from polls, fundraising, endorsements, and historical results.

All 2026 race forecasts · About the model