South Dakota 2026 Primary

U.S. Senate & U.S. House & Governor

Jun 2 2026

Completed

Governor & U.S. House & U.S. Senate

Nov 3 2026

51 days away

Filing Deadline: Mar 31, 2026

★ U.S. Senate Safe R

Incumbent: R Mike Rounds

Julian C Beaudion Won Primary — Withdrew $228,295 raised

Brian Bengs $782,050 raised

Mike Rounds Incumbent Nominee $3,176,451 raised

Justin McNeal $10,993 raised

Dollar figures are each campaign’s total funds raised, from FEC filings.

Held June 2, 2026.

Candidate	Votes	%
Mike Rounds ✓	101,471	75.8%
Justin McNeal	32,412	24.2%

Incumbent: R Larry Rhoden

Dan Ahlers Nominee

Larry Rhoden Incumbent Nominee

Toby Doeden

Held July 28, 2026.

Candidate	Votes	%
Larry Rhoden ✓	83,582	70.8%
Toby Doeden	34,430	29.2%

SD-AL At-Large Safe R R Dusty Johnson

Marty Jackley (R) ✓ Dusty Johnson (R) Incumbent Billy Mawhiney (D) Nicole Gronli (D) Casey Crabtree (R)

Republican · Jun 2 Marty Jackley 103,290 79.2% ✓ James Bialota Jr. 27,140 20.8%

Details →

Race	Pollster	Date	Sample	Results
Governor · Republican primary	Emerson College ±2.7	2026-07-13	500 LV	Larry Rhoden 62% · Toby Doeden 32% · Unsure 7%
Governor · Republican primary	The Public Sentiment Institute	2026-05-27	400 LV	Larry Rhoden 32% · Dusty Johnson 27% · Toby Doeden 24% · Jon Hansen 13% · Unsure 3%
Governor · Republican primary	Meeting Street Insights (R)	2026-05-20	450 LV	Larry Rhoden 23% · Toby Doeden 22% · Jon Hansen 21% · Dusty Johnson 19% · Unsure 15%
Governor · Republican primary	Emerson College ±2.7	2026-05-19	432 LV	Toby Doeden 26% · Dusty Johnson 23% · Larry Rhoden 19% · Jon Hansen 16% · Unsure 16%

Primary polls are shown here only — they never enter the general-election averages. Pollster names link to track records.