U.S. Senate · South Dakota · 2026
General election · 2 on the certified November ballot · Incumbent running
Looking for the House race? South Dakota’s at-large U.S. House seat
Model rating Leans Republican (Held) on our experimental model — not a poll or a forecast.
No polls on file for this race. Model inputs: 4 of 7, updated yesterday. Sources · What is validated
News attention 56/100 — how much coverage the race gets, not who is winning. Updated 4 days ago. How it works
On the November ballot (1)
Certified by the state, checked 2026-09-29.
Not on the certified ballot (3)
Filed or ran for this seat, but not on the state’s certified list for November.
Official source: https://vip.sdsos.gov/candidatelist.aspx?eid=774
Latest verified field polling
Only checksummed releases from verified (Tier V) pollsters appear here.
No verified poll has been published for this race. Vector, our experimental model rating, is below — it is not a poll.
Polling average
No polls on file for this race yet. See latest polls across every race.
Campaign money (FEC)
Candidate committee totals for the cycle from the Federal Election Commission (public domain), as of each committee's latest report.
| Candidate | Raised | Spent | Cash on hand | Through |
|---|---|---|---|---|
| Mike Rounds | $4,513,920 | $3,459,778 | $2,736,664 | 2026-06-30 |
| Brian Bengs | $782,050 | $730,644 | $51,406 | 2026-06-30 |
| Julian C Beaudion | $228,295 | $225,217 | $3,078 | 2026-06-30 |
| Justin S McNeal | $10,993 | $10,992 | $1 | 2026-06-30 |
Results
Vote counts as reported by the state; transcribed from the Wikipedia election article (CC BY-SA 4.0), which cites the state's official results.
Republican primary
| Mike Rounds (incumbent) won | 101,284 | 75.8% |
| Justin McNeal | 32,341 | 24.2% |
Source: Wikipedia article revision (CC BY-SA 4.0), retrieved 2026-09-29 · parser wiki-race-1.0.0
Key dates
Official federal election dates for this state from the FEC. Registration deadlines and early voting: see the state election office.
- 2026-06-02 — Primary election: U.S. Senate
- 2026-11-03 — General election: U.S. Senate
Source: FEC election dates (public domain).
Primary and hypothetical polls (10)
Kept on file, never averaged into this race. Polls listed on the Wikipedia election article (CC BY-SA 4.0), each linked to the pollster's own release.
- Hypothetical matchup · Public Policy Polling (partisan) · 2026-09-08–2026-09-09 · n=629 · Mike Rounds (R) 45%, Brian Bengs (I) 42% · release
- Hypothetical matchup · Impact Research (partisan) · 2026-08-13–2026-08-17 · n=500 · Mike Rounds (R) 44%, Brian Bengs (I) 44% · release
- Hypothetical matchup · Public Opinion Strategies (partisan) · 2026-07-06–2026-07-09 · n=500 · Mike Rounds (R) 56%, Brian Bengs (I) 33% · release
- Hypothetical matchup · Public Policy Polling (partisan) · 2026-05-29–2026-05-30 · n=726 · Mike Rounds (R) 56%, Julian Beaudion (D) 31% · release
- Hypothetical matchup · Public Policy Polling (partisan) · 2026-05-29–2026-05-30 · n=726 · Mike Rounds (R) 44%, Brian Bengs (I) 40% · release
- Hypothetical matchup · Public Policy Polling (partisan) · 2026-05-29–2026-05-30 · n=726 · Mike Rounds (R) 43%, Brian Bengs (I) 23%, Julian Beaudion (D) 18% · release
- Hypothetical matchup · Public Policy Polling (partisan) · 2026-02-17–2026-02-18 · n=685 · Mike Rounds (R) 49%, Julian Beaudion (D) 32% · release
- Hypothetical matchup · Public Policy Polling (partisan) · 2026-02-17–2026-02-18 · n=685 · Mike Rounds (R) 47%, Brian Bengs (I) 35% · release
- Hypothetical matchup · Public Policy Polling (partisan) · 2025-11-13–2025-11-14 · n=814 · Mike Rounds (R) 44%, Brian Bengs (I) 31% · release
- Hypothetical matchup · Public Policy Polling (partisan) · 2025-11-13–2025-11-14 · n=814 · Mike Rounds (R) 52%, Julian Beaudion (D) 30% · release
In the news
- GOP doubts about Georgia and North Carolina have Republicans shifting focus in battle for Senate
- Appropriators seek ways to curb Trump’s spending cancellations
Headlines from outlets across the political spectrum, linked to the publisher. Vugol.me doesn’t write or endorse them. How we choose them · All election news
Signals (experimental)
Attention 56 Vector R · Held
Vugol Me Attention (attention intensity)
Attention intensity index 0–100 · not a poll · normalized nightly
Vugol Me Vector (experimental)
Directional rating without probability · experimental · model confidence: medium
Daily precision telemetry
Per-source daily series, CSV export and Vector inputs · paid plans
Sources
- Roster — official filings; fundraising from FEC datapoints where on file (https://api.open.fec.gov/).
- Attention inputs — Wikipedia pageviews (https://wikimedia.org/api/rest_v1/) and GDELT news volume and tone (https://www.gdeltproject.org/).
- Polls and results — individual polls and primary results listed on the Wikipedia election article (CC BY-SA 4.0), each poll linked to the pollster's release; money and election dates from the FEC (public domain). How rows are checked.
- Models pulse-1.0.0 · vector-1.1.0 · attention inputs SHA-256 3f6b8d559fd7 · methodology · license CC BY 4.0 (data license).
Band: R · Held (experimental). Have a say in the community poll; it is open to signed-in voters and never feeds these numbers.