South Dakota U.S. Senate
Who Holds This Seat
Running in 2026
IncumbentNov 3 General
Mike RoundsRepublican · U.S. Senator
- Ballot
- On the 2026 ballot
- Last Change
- Profile updated · Sep 24
- Raised
- $4,586,805cycle to date through Jun 30
- Cash on Hand
- $2,736,664cycle to date through Jun 30
View on FEC.govFEC, cycle to date through Jun 30, 2026
ChallengerNov 3 General
Brian BengsIndependent
- Ballot
- On the 2026 ballot
- Last Change
- Profile updated · Sep 24
- Raised
- $782,050cycle to date through Jun 30
- Cash on Hand
- $51,406cycle to date through Jun 30
View on FEC.govFEC, cycle to date through Jun 30, 2026
On File, Not Running
Past Results
United States Senator
2022 General Election · Nov 8, 2022| Candidate | Party | Votes | Share |
|---|---|---|---|
| John R. ThuneRepublican | Republican | 242,316 | 69.6% |
| Brian L. BengsDemocrat | Democrat | 91,007 | 26.1% |
| Tamara J LesnarLibertarian | Libertarian | 14,697 | 4.2% |
Official — South Dakota Secretary of State, Official Election Returns (State Canvass) · South Dakota Secretary of State — 2022 Official Election Returns and…
United States Senator
2020 General Election · Nov 3, 2020| Candidate | Party | Votes | Share |
|---|---|---|---|
| Mike RoundsRepublican | Republican | 276,232 | 65.7% |
| Dan AhlersDemocrat | Democrat | 143,987 | 34.3% |
Official — South Dakota Secretary of State, Official Election Returns (State Canvass) · South Dakota Secretary of State — 2020 Official Election Returns and…