
Wisconsin Watch partners with Gigafact to produce Fact Briefs — bite-sized fact checks of trending claims. Read our methodology to learn how we check claims.
Yes.

U.S. Rep. Tom Tiffany, the Wisconsin Republican running for governor, moved to reverse Democrat Joe Biden’s win over Republican Donald Trump in the 2020 presidential election.
Dec. 10, 2020: Signed a legal brief supporting Texas’ U.S. Supreme Court bid to overturn the results in Wisconsin and three other battleground states that backed Biden.
Jan. 5, 2021: Announced plans to vote against certifying the Electoral College results, claiming hundreds of thousands of Wisconsin votes were cast illegally, and later said he would have voted against certifying Wisconsin’s election results.
Jan. 6, 2021: Voted to object to counting electoral votes in Pennsylvania and Arizona, which supported Biden.
May 18, 2026: Backed an FBI probe of Wisconsin’s 2020 election.
August 2026: Said he didn’t regret voting against certifying the election.
Sept. 4, 2026: Told Wisconsin Watch that Biden won but he still welcomes law enforcement investigations into Wisconsin’s 2020 election.
This Fact Brief is responsive to conversations such as this one.
Sources
- Milwaukee Journal Sentinel: Tom Tiffany among 106 House Republicans backing Texas lawsuit to overturn election
- U.S. Supreme Court: Motion for Leave to File Brief Amicus Curiae and Brief Amicus Curiae of U.S. Representative Mike Johnson and 125 Other Members of the U.S. House of Representatives in Support of Plaintiff’s Motion for Leave to File a Bill of Complaint and Motion for a Preliminary Injunction
- U.S. Rep. Tom Tiffany: Tiffany to Object to Wisconsin Electors Amid Irregularities, Rule Violations
- Wisconsin Watch: Did potential Wisconsin US Senate candidate Tom Tiffany vote against certifying 2020 election results?
- Milwaukee Journal Sentinel: Tiffany backs FBI probe into 2020 vote, won't say whether Biden won
- Tom Tiffany campaign: Email


