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Matthew M. Longjohn is an American physician and politician serving as a member of the Michigan House of Representatives for the 40th district since 2025. A member of the Democratic Party, he previously ran as the Democratic nominee for Michigan's 6th congressional district in 2018. Longjohn is a public health expert and former National Health Officer for the YMCA. He earned his bachelor's degree from Kalamazoo College and his M.D. and M.P.H. from Tulane University.
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Support for Matt Longjohn · 7/28/2026
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