Dusty Johnson has emerged as the clear frontrunner in the South Dakota Republican primary for governor, with trader consensus reflecting his sustained lead in recent polling and broader name recognition from four terms in Congress. A Mason-Dixon survey of registered Republicans conducted in mid-April showed Johnson at 34 percent support, ahead of Jon Hansen at 18 percent and Larry Rhoden and Toby Doeden tied near 17 percent, with the gap widening from earlier surveys. Johnson's federal experience and proposals on property tax relief and Medicaid have resonated in candidate forums, while Rhoden, who ascended to the governorship in January 2025 after Kristi Noem's resignation, emphasizes legislative results but trails in voter preference. The June 2 primary could produce a runoff if no candidate reaches 35 percent, yet current positioning favors Johnson consolidating support among moderate and establishment voters ahead of the contest.