Home / Races / South Dakota / U.S. House — SD-AL
SD2026

U.S. House — SD-AL · South Dakota · 2026

General election · 2 on the certified November ballot · Open seat (no incumbent)

Model rating Leans Republican (Tilting) on our experimental model — not a poll or a forecast.

No polls on file for this race. Model inputs: 2 of 7, updated today. Sources · What is validated

News attention — — how much coverage the race gets, not who is winning. First run pending. How it works

On the November ballot (2)

Certified by the state, checked 2026-09-29.

Not on the certified ballot (2)

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.

none yet

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 yet

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.

CandidateRaisedSpentCash on handThrough
Billy Mawhiney Democratic$31,138$31,138$02026-03-31
Casey Crabtree Republican$254,950$236,228$18,7222026-06-30
Marty Jackley Republican$1,438,706$375,981$1,062,7252026-06-30
Nicole Gronli Democratic$261,764$150,786$110,9782026-06-30

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

Marty Jackley won103,07479.2%
James Bialota Jr.27,10020.8%

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. House
  • 2026-07-28 — Runoff: U.S. House
  • 2026-11-03 — General election: U.S. House

Source: FEC election dates (public domain).

Primary and hypothetical polls (4)

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.

  • Republican primary · Mason-Dixon Polling & Strategy · 2026-04-07–2026-04-11 · n=500 · Marty Jackley (R) 68%, James Bialota 12% · release
  • Republican primary · Emerson College · 2026-03-07–2026-03-09 · n=415 · Marty Jackley (R) 51%, James Bialota 7% · release
  • Republican primary · Mason-Dixon Polling & Strategy · 2025-10-16–2025-10-20 · n=502 · Marty Jackley (R) 57%, Casey Crabtree (R) 5%, James Bialota 2% · release
  • Republican primary · Guidant Polling & Strategy (partisan) · 2025-06-17–2025-06-19 · n=400 · Marty Jackley (R) 48%, Tony Venhuizen 5%, Casey Crabtree (R) 5% · release

Signals (experimental)

Attention — Vector R · Tilting

Vugol Me Attention (attention intensity)

Attention intensity index 0–100 · not a poll · normalized nightly

pulse-1.0.0

Signals for this race are being collected. The first Attention score lands after the nightly run reaches it; nothing is estimated in the meantime.

Vugol Me Vector (experimental)

Directional rating without probability · experimental · model confidence: low

vector-1.1.0
Democratic leanOpen centerRepublican lean
AnchoredHeldTiltingOpenTiltingHeldAnchored
Completeness2 of 7 inputs (national, money) · missing: prior, pres, incumbent, pulse, poll
Evidenceno verified poll · fundamentals only
Freshnessoldest input 2026-09-30 (today)
Vector component signals · estimated margin R +8.0Fundraising velocity (FEC)R +8.0National environment: our generic-ballot average is D +7.9 (27 pollsters, as of 2026-09-30), against the 2024 national House vote of R +2.6. The seat's last result and presidential lean move by that swing; polls, incumbency and money do not. How.

Daily precision telemetry

Per-source daily series, CSV export and Vector inputs · paid plans

Sources

Band: R · Tilting (experimental). Have a say in the community poll; it is open to signed-in voters and never feeds these numbers.