U.S. Representative Tom Tiffany won the Wisconsin Republican primary for governor on August 11, advancing to the November general election as his party’s nominee in a race rated as a toss-up by major political analysts.
Tiffany, who represents Wisconsin’s 7th Congressional District in the state’s northern region, defeated challenger Andy Manske, a 27-year-old medical service technician, in the Republican primary. A third candidate, Dennis Williams, also ran as a write-in option. Tiffany had secured an endorsement from President Donald Trump ahead of the primary and led significantly in polling, with a Marquette Law School poll from late July showing him at 67% support among Republican primary voters.
The congressman will now face the winner of the Democratic primary in the November 3 general election. The race has been rated a toss-up by the Cook Political Report, Inside Elections, and Sabato’s Crystal Ball, indicating the outcome remains competitive despite Tiffany’s dominant showing in the Republican primary. The Democratic primary, also held on August 11, featured four candidates vying for their party’s nomination, with Francesca Hong leading polls in the crowded Democratic field.
Tiffany’s primary victory follows a pattern of Republican gubernatorial nominees securing their nominations in August 2026. Lisa Demuth won Minnesota’s GOP primary for governor with 46% of the vote on August 12, while Marsha Blackburn won Tennessee’s Republican primary on August 7. These races have set the stage for competitive fall campaigns across multiple states.
Sources
- NBC News — Tom Tiffany’s Republican primary win and Trump endorsement
- Washington Post — Wisconsin governor primary results and race overview
- New York Times — Wisconsin primary election results and candidate information
- Ballotpedia — Detailed candidate profiles and primary results
- Marquette Law School — July 2026 poll showing Tiffany at 67% in Republican primary
