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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.


A Marquette Law School Poll found that 71% of U.S. adults favor requiring that transgender athletes compete on teams that match the sex they were assigned at birth, not the gender with which they identify, and 28% were opposed.

The online poll of 1,010 adults was conducted May 8-18, 2023.

On July 12, 2023, Republican state Rep. Barbara Dittrich, who represents part of suburban Milwaukee, cited the March 2023 version of the Marquette poll in announcing she would introduce the Save Women in Sports Act.

That poll found a 70-30 split in support versus opposition on the same question.

Dittrich said her Assembly bill and a companion Senate bill from another suburban Milwaukee Republican, Sen. Dan Knodl, would offer three categories of sports competition based on a person’s “biological sex” with an additional co-ed category.

Knodl said the legislation would apply to K-12 and collegiate sports.

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Marquette New Marquette Law School Poll

Marquette Marquette Law School Supreme Court Poll May 8-18, 2023

WisPolitics Rep. Dittrich: Works to save women’s sports

WisPolitics Sen. Knodl: Introduces bills to save girls’ sports

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Tom Kertscher joined as a Wisconsin Watch fact checker in January 2023 and contributes to our collaboration with the The Gigafact Project to fight misinformation online. Kertscher is a former longtime newspaper reporter, including at the Milwaukee Journal Sentinel, who has worked as a self-employed journalist since 2019. His gigs include contributing writer for PolitiFact and sports freelancer for The Associated Press.