Gov. Larry Rhoden, who ascended to the office last year when Kristi Noem left for the Trump cabinet, overcame a large Republican primary field and won a runoff election to secure the G.O.P. nomination for a full term as governor of South Dakota.

Rhoden, a longtime state legislator and former lieutenant governor, became the state's 33rd governor in January 2025 after Noem resigned to serve as Secretary of Homeland Security. His elevation triggered a competitive primary season with multiple challengers vying for the party's backing.

The runoff victory positions Rhoden as the heavy favorite in the general election this November, given South Dakota's strong Republican lean. He has emphasized continuity with Noem's conservative agenda while highlighting his own legislative experience and roots in the state's ranching community.

Political analysts note that Rhoden's successful navigation of a crowded primary field demonstrates strong party consolidation behind his incumbency. The general election campaign is expected to focus on agricultural policy, energy development, and federal-state relations.