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U.S. Rep. Tom Tiffany, the northern Wisconsin Republican running for governor in the Nov. 3 election, has rarely diverged from supporting President Donald Trump since Trump began his second term in January 2025.

UCLA/Voteview found Tiffany’s support for Trump at 93% in 2025 House of Representatives votes. 

Congressional Quarterly put it at 99%.

Two other ratings put Tiffany’s support at 100%.

The methodologies varied on the number of votes reviewed. 

In 2026, Tiffany’s votes supporting Trump included opposing a measure that would have blocked Trump from ordering more strikes on Iran. Tiffany also backed Trump in voting against a bill to provide aid to Ukraine and sanction Russia.

On statements, Tiffany diverged from Trump in August. Tiffany said he opposed moves to rename Lake Ontario as “Lake America” and import cheaper ground beef. 

In September, he supported Trump’s proposed $5,000 “dividend.”

This Fact Brief is responsive to conversations such as this one.

Sources

• UCLA/Voteview: Presidential Support Scores
• Congressional Quarterly: 2025 Presidential Support Scores — House
• Center for American Progress Action Fund: The Trump Scorecard: How Often Members of Congress Vote With the Trump Administration
• VoteHub: Is Your Member of Congress Aligned with Trump?
• Washington Post: How every House member voted on blocking Trump from striking Iran
• Legisletter: Tom Tiffany
• BBC: House Republicans break with Trump again to approve Ukraine aid
• Associated Press: As midterm elections approach, Republican candidates weigh how closely to align with Trump
• Milwaukee Journal Sentinel: Wisconsin's GOP U.S. lawmakers split on Trump's $5,000 midterm checks

Has Tom Tiffany supported Donald Trump’s positions the vast majority of the time? is a post from Wisconsin Watch, a non-profit investigative news site covering Wisconsin since 2009. Please consider making a contribution to support our journalism.