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2026 U.S. Senate election in South Dakota
South Dakota voters will choose one U.S. senator in 2026 for the state’s Class II seat. The race matters because it will help determine control of the U.S. Senate, and South Dakota is generally considered a strongly Republican state, making the incumbent GOP seat the central benchmark. The contest features incumbent Republican Mike Rounds, Democrat Julian Beaudion, and independent Brian Bengs, with the main contrasts centered on party control, governing style, and policy priorities such as public safety, healthcare, the economy, and government accountability.
Candidates
Mike Rounds
Mike Rounds is the incumbent U.S. senator from South Dakota, first elected in 2014. His campaign and Senate office emphasize national security, veterans, agriculture, cybersecurity, tribal relations, and pro-business policies. He is seeking reelection in a state that has leaned strongly Republican in recent federal elections.
Julian Beaudion is a Democratic candidate for U.S. Senate in South Dakota. His background includes more than a decade with the South Dakota Highway Patrol, nonprofit leadership, and small-business ownership, and his campaign says he is focused on public safety, healthcare, infrastructure, education, and support for working families. He presents himself as a pragmatic, community-oriented candidate who emphasizes accountability and coalition-building.
Brian Bengs is an independent candidate for U.S. Senate in South Dakota and previously ran for the seat in 2022 as a Democrat. His background includes military service, legal work, and teaching, and his campaign focuses on reducing corruption, limiting the influence of big money, and addressing affordability, healthcare, and fiscal policy. He positions himself as a nonpartisan alternative to the major parties.
Data Analysis Information
Data compiled from public sources and analyzed using AI. Last updated 4/6/2026. Visit candidate websites for the most current information.