The Ballot Brief › South Dakota › Mike Rounds
Mike Rounds
R · South Dakota · 2026 · IncumbentMike Rounds is South Dakota's incumbent U.S. senator and the Republican nominee for a third term, winning the June 2 primary with President Trump's endorsement. A former two-term governor and insurance business owner who grew up in Pierre as the oldest of eleven, his campaign emphasizes energy independence, low taxes, and cutting red tape.
Priorities
- Achieve energy independence and support South Dakota agriculture
- Keep taxes low and cut red tape
- Protect freedoms and strengthen national defense
Key voting record
- Supported the 2025 Republican tax and spending package, which passed the Senate 51-50 with the vice president breaking the tie. Supported
- Supported the Laken Riley Act requiring federal detention of undocumented immigrants charged with theft and other crimes, which passed with every Senate Republican in favor. Supported
- Has served in the Senate since 2015 after two terms as South Dakota governor. Served
On the ballot
U.S. Senate · South Dakota · 2026
Us Senate · South Dakota · 2026
United States Senate · South Dakota · 2026
How we source this
Profile facts follow official election office filings and the sources cited in each biography. Official sources are the final word on who appears on your ballot.