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)

VecR 32 · TiltingTenR 86%Att57

Result

Called

Marty Jackley (R) won this race.

  • Marty JackleyRepublicanWinnershare not given195,587 votes
  • Nicole GronliDemocraticshare not given109,993 votes
Margin
85,594 votes
Called
Called by Wikipedia editors, Nov 4, 9:29 AM ET (revision)
Last updated
Nov 14, 6:07 AM ET

Called it: hit Our locked call before polls closed was R; the winner is R. See every locked call

Unofficial until the state certifies the result.

Before the election

Polls, ratings and the Vugol Tensor below were published before votes were counted. They are not results.

Certified ballotU.S. House - SD-AL · South Dakota
Nicole Gronli
D
DEM
Marty Jackley
R
REP
No verified poll yet · Vugol Vector: R Tilting

Model rating Leans Republican (Tilting) on the Vugol Vector model, a snapshot of today, not a probability.

1 poll on file, none verified yet (pollster not verified or no public source), shown below, not averaged. Model inputs: 2 of 7, updated today. Page updated 2026-11-14. Sources · What is validated

ExperimentalNews attention 57/100, how much coverage the race gets, not who is winning. Updated 2 days ago. How it works

On the South Dakota ballot, Nov 3, 2026 Election Day has passed; see the ballot as it was.Voting in South Dakota? Check your registration, get a mail ballot, find your polling place.

On the November ballot (2)

Certified by the state, checked 2026-11-13.

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

Verified = published by the pollster that conducted it, with a public source we link to.

none yet

No verified poll has been published for this race. The Vugol Vector call from our model is below, it is not a poll.

Polling average

no verified inputs yet

1 poll on file for this race, none verified yet (pollster not verified or no public source), visible below, not averaged.

25456590d60d30dtodayMason-Dixon Polling & Strategy (quarantined) · 2026-10-14 · Marty Jackley (R) 60.0%Mason-Dixon Polling & Strategy (quarantined) · 2026-10-14 · Nikki Gronli (D) 32.0%
Marty Jackley (R)Nikki Gronli (D)● verified poll · ○ quarantined poll · ◎ live average

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$254,950$02026-09-30
Marty Jackley Republican$1,737,520$687,379$1,050,1412026-10-14
Nicole Gronli Democratic$421,803$399,312$22,4912026-10-14

Ad spending (FEC)

What each campaign reported paying for ads, and what outside groups (super PACs, PACs and parties) reported spending for and against each candidate. Federal Election Commission filings, public domain.

CandidateCampaign's own adsOutside groups forOutside groups against
Marty Jackley Republican$82K+ $22K mail · through 2026-06-30$247K$159K ads · 4 groupsnone reported
Casey Crabtree Republican$36K+ $13K mail · through 2026-09-23none reportednone reported
Billy Mawhiney Democratic$2,991+ $281 mail · through 2026-02-25none reportednone reported
Nicole Gronli Democratic$0+ $4,178 mail · through 2026-06-30none reportednone reported

Biggest outside spenders

  • Marty Jackley. For: SOUTH DAKOTA VALUES PAC $120K, CONSERVATIVES FOR AMERICAN EXCELLENCE INC. $66K, SAVE AMERICAN FREEDOM $36K

Outside groups: 24- and 48-hour independent expenditure reports for the 2026 primary and general, through 2026-10-20, each expenditure counted once after amendments; "ads" is TV, radio, digital and other media, and the rest is mail, phones, canvassing and similar. Campaign's own ads: TV, radio, digital, other media and ad production in the campaign committee's itemized payments, as the campaign described them, from the reports the FEC has processed (latest through 2026-09-23); newer reports appear as the FEC processes them. These are amounts committees reported paying, not airtime tracked by ad-monitoring firms, so very recent buys and future reservations may not show yet. Parser fec-ad-spend-1.0.0.

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.

general election · official results

Marty Jackley won195,587-
Nicole Gronli109,993-

Republican primary

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

Source: Wikipedia article revision (CC BY-SA 4.0), retrieved 2026-11-14 · 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 that article revision and, where we know it, to the pollster's own site.

  • 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% · pollster's site · 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

In the news

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

Lab

Vugol Vector & Vugol Attention

Vugol Attention 57 Vugol Vector R · Tilting

Vugol Me model signals, not polls. Verified polling is in the Polls section above.

Vugol Me Attention (attention intensity)

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

attention-1.0.0
57OUT OF 100Moderate attention
Vugol Attention percentile76th
7-day momentum30 / 100
Source breadth50% of tracked

Vugol Vector

Proprietary ensemble model · a call, not a probability · 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 audit release · fundamentals only
Freshnessoldest input 2026-11-12 (2 days ago)

The breakdown of this call (the model's multi-signal input matrix, input by input) is on Ultra Pro plans.

Vugol Tensor

How far this call can miss · a range, not a prediction · no verified poll here, so the range is wider and untested

tensor-1.0.0

Centre R+8.0. Four times in five the result lands between D+1.4 and R+17.4; nine in ten between D+4.1 and R+20.1. Chance the Democrat finishes ahead: 14%.

Polls have missed by about four points in a typical race and they miss together. How Tensor works →

Desk data: daily telemetry

Per-source daily series, CSV export and the Vugol Vector breakdown · paid plans

Sources

Vugol Vector band: R · Tilting. Have a say in the Vugol race poll; it is open to signed-in voters and never feeds these numbers.

The four Vugol signals, side by side

They answer different questions and are kept apart. Full method: Methodology.

Vugol Vector
Our call for every race if today’s polls hold. A snapshot, not a win probability or a vote share.
Vugol Tensor
How sure we are: ranges and chamber-control odds around the Vector, built from past polling error. An experiment about uncertainty, not a better guess.
Vugol Attention
How much news and online noise a race gets, 0 to 100. It measures noise, not support: a high score says nothing about who is ahead.
Vugol Pulse
Our daily thumbs-up or thumbs-down question for readers. Anyone can answer, so it describes our readers, not the public. It is not a vote and never enters a poll average or any other signal.