Mike Rounds (R)
Mike Rounds is the Republican running for U.S. Senate in South Dakota in 2026.
- Race
- South Dakota Senate · November 3, 2026
- Party
- Republican
- Betting markets
- 94% chance
- Polling average
- 50.7% · 7 polls
- Campaign money
- Raised $5.1 million, spent $5.5 million FEC · incumbent
Polls, odds and results for the race → · All South Dakota races →
Sources: civicAPI results; Polling Desk polling average; Kalshi and Polymarket markets; campaign money from the Federal Election Commission (FEC), shown when the candidate raised at least $100,000.