A Sioux Falls Democrat is joining the race for South Dakota's at-large congressional district seat.

Billy Mawhiney announced in an Aug. 28 press release the launch of his campaign for the state's lone seat in the U.S. House of Representatives.

Mawhiney serves as executive director of the South Dakota Afterschool Network, a statewide organization that promotes after-school, out-of-school and youth development programming. He is also a member of the Wyandotte Nation, a federally recognized Native American tribe located in northeastern Oklahoma.

The sole House seat is currently held by Republican U.S. Rep. Dusty Johnson, who is running for South Dakota governor in 2026.

Mawhiney is the first Democrat to announce a bid for Congress in the state. According to filings with the Federal Elect

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