In 2026, 19% of the state legislative incumbents running for election in Michigan will face primary contests, a record low since 2010.
In total, 20 incumbents face contested primaries across the Michigan House and Senate. The average number of incumbents contested each midterm election cycle since 2010 was 28. Thirteen of the contested incumbents are Democrats, and seven are Republicans.
Democrats have a 20-18 majority in the Senate, and Republicans have a 58-52 majority in the House. Michigan has had a divided government since Republicans gained control of the House from Democrats in the 2024 elections.
