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  3. 2026 South Dakota U.S. Senate Primary
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2026 South Dakota U.S. Senate Primary

Election Date:June 2, 2026Register by:May 13, 2026
Current holder:Mike Rounds(Republican)

The 2026 South Dakota U.S. Senate Primary is a federal election held on June 2, 2026, to select the Republican and Democratic nominees for the U.S. Senate seat currently held by incumbent Senator Mike Rounds. Voters will choose party candidates who will advance to the general election in November 2026.

About This Race

The 2026 South Dakota U.S. Senate Primary is a federal election held on June 2, 2026, to select the Republican and Democratic nominees for the U.S. Senate seat currently held by incumbent Senator Mike Rounds. Voters will choose party candidates who will advance to the general election in November 2026.

Candidates

Important Dates

Election Date
June 2, 2026
Registration Deadline
May 13, 2026
Early Voting Starts
May 18, 2026
Early Voting Ends
May 31, 2026

How to Vote

To vote in the 2026 South Dakota U.S. Senate Primary, voters must be registered by May 13, 2026. Registered voters may vote early in person from May 18 to May 31, 2026, or cast an absentee ballot by mail if requested by May 27, 2026. On Election Day, June 2, 2026, polls are open from 7:00 AM to 7:00 PM CT, and voters must present a valid photo ID such as a South Dakota driver's license, passport, or tribal ID.

MR
Incumbent
Republican

Mike Rounds

United States Senator from South Dakota

Biography

Mike Rounds is the incumbent U.S. Senator from South Dakota, first elected in 2014 and re-elected in 2020. A former governor of South Dakota (2003–2011), he is seeking a third term in the Senate, emphasizing his work on agriculture, veterans' affairs, and fiscal conservatism.

Campaign Website
SJ
Democratic

Sheryl Johnson

United States Senator from South Dakota

Biography

Sheryl Johnson is a former Minority Leader of the South Dakota House of Representatives and a Democrat running for the U.S. Senate to challenge incumbent Mike Rounds. She focuses on expanding healthcare access, supporting public education, and advocating for rural economic development in her campaign.

Campaign Website

Updated 2 days ago

federalVERIFIED

Texas U.S. Senate Primary Election Results - The New York Times

Texas U.S. Senate Primary Election Results  The New York Times

Read article
The New York Times 11 days ago