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The latest annual legislative scorecard from the American Conservative Union ranked Rep. Tom Tiffany the most conservative of the eight-member Wisconsin U.S. House delegation.

The ratings by the group’s Center for Legislative Accountability were released April 24, 2023. They are based on House members’ votes on select bills.

Tiffany, a Republican who represents most of northern Wisconsin, received a 97% rating for 2022, 2021 and for his tenure in the House. He has served since 2020.

Ranking second was Republican Glenn Grothman. His ratings were 88% in 2022, 95% in 2021 and 92% for his tenure. Grothman, who represents part of eastern Wisconsin, has been in the House since 2015.

Tiffany is considering a run against Democratic U.S. Sen. Tammy Baldwin in 2024.

Several rating systems rank Baldwin as one of the most liberal Senate members.

A member of Congress since 1999 and a senator since 2013, Baldwin received a 2% lifetime rating from the conservative group.

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


American Conservative Union 2022 Ratings of Congress (pages 38, 12)

CPAC New CPAC Ratings Released: Revealing the Most & Least Conservative Members of Congress

Wisconsin Watch Is Wisconsin’s Tammy Baldwin rated one of the most liberal members of the US Senate?

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Tom Kertscher / Wisconsin WatchFact Checker

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.