Representative Tom Tiffany (R-WI) won the Republican nomination for Wisconsin governor on August 11, 2026, receiving 96.4% of the votes in the primary election. His opponent, Andy Manske, garnered 3.5% of the votes, according to the Associated Press. Tiffany, who has been endorsed by former President Donald Trump, will face the winner of the Democratic primary in the general election. Tiffany has served in the U.S. House since 2020 and announced his candidacy for governor to replace retiring Governor Tony Evers (D-WI). Several GOP candidates withdrew from the race following Tiffany's entry and Trump's endorsement.
Tiffany's campaign focuses on issues such as affordability, public safety, and education, with pledges to freeze property taxes, ban sanctuary cities, and invest in K-12 education. Manske campaigned as a political outsider advocating for reforms in healthcare and election systems. Tiffany has positioned himself against what he describes as socialist policies, particularly in light of the Democratic primary, where Francesca Hong is a leading candidate. The Cook Political Report has rated the governor's seat as a toss-up ahead of the November election.