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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.

Betting on an election one is voting in is illegal in Wisconsin.

Politics betting has become popular on platforms like Kalshi and Polymarket. Just this year, people have placed lucrative bets on the capture of the Venezuelan leader Nicolás Maduro and on the war with Iran, among other events. 

On Kalshi, people have placed bets worth tens of thousands of dollars on Wisconsin’s Supreme Court election on April 7 and the governor’s primary election on Aug. 11.

Ann Jacobs, Wisconsin’s Elections Commission chair, noted on X that voters’ ballots can be disqualified and thrown out if they were found to have bet on the election. 

Wisconsin Statute 6.03(2) specifies that no one is allowed to vote in any election in which the person has placed “any bet or wager depending upon the result of the election.” The idea behind the law has existed since 1849.

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Eva Wen is an investigative data reporter at the Milwaukee Journal Sentinel. She reports on mental health, immigration and everything data. Her reporting has been featured in national outlets and cited in civil lawsuits. Prior to joining the Journal Sentinel, she was at the Columbia Journalism School in New York.