WASHINGTON (AP) — South Dakota's governor, the speaker of the state House, the state's lone representative in Congress and a businessman will face off in a competitive Republican primary for governor on Tuesday. Primary voters will also choose nominees for other state and federal offices, while Sioux Falls residents will elect a new mayor.

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Gov. Larry Rhoden seeks a full term as the state's chief executive. He was previously lieutenant governor under then-Gov. Kristi Noem but assumed the top job when Noem stepped down in early 2025 to join President Donald Trump's Cabinet.

Serving less than half a term as governor was not enough for Rhoden to clear the Republican field. He faces strong challenges from U.S. Rep. Dusty Johnson, state House Speaker Jon Hansen and businessman Toby Doeden.

The winner will face former state Sen. Dan Ahlers in the general election. Ahlers is unopposed for the Democratic nomination.