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2026 candidates we're tracking in SD-AL
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Marty Jackley
R
Marty Jackley is South Dakota's sitting attorney general and the Republican nominee for the state's at-large U.S. House seat, winning the June 2, 2026 primary over James Bialota, per KELOLAND's primary-night results. He is running for the seat Rep. Dusty Johnson is vacating to run for governor, and is endorsed by the U.S. Chamber of Commerce, per the Chamber's endorsement announcement.
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Nicole "Nikki" Gronli
D
Gronli is a small business owner and rural Dell Rapids resident who led USDA Rural Development in South Dakota from 2022 to 2025, overseeing investments in rural housing, broadband, infrastructure and community facilities, per the campaign site. She has about three decades of experience in marketing, communications and leadership, per the campaign site.
About this race
South Dakota At-Large Congressional District elects one member of the U.S. House of Representatives to a two-year term. Every House seat in the country is on the ballot in 2026. The South Dakota primary is Tuesday, June 2, 2026 (runoff Tuesday, July 28, 2026 if needed), and the general election is Tuesday, November 3, 2026.