A Democrat has won a special election for an Iowa state Senate seat in a district that had been held by Republicans and had voted heavily for President Donald Trump in 2024, adding to the Democratic Party’s hope that it can flip more seats during the 2026 midterm elections.

Democrat Catelin Drey handily defeated Republican Christopher Prosch in Tuesday’s election, according to unofficial results from the Woodbury County Auditor’s Office, for the district that covers Sioux City in the Republican stronghold of northwestern Iowa. The special election had been called after Republican Sen. Rocky de Witt died in June of pancreatic cancer.

Fewer than a quarter of registered voters turned out for the special election.

Drey’s win breaks Republicans’ supermajority in the 50-member Iowa Senate, gi

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