South Dakota Governor Larry Rhoden survived a historic primary runoff, beating businessman and Bitcoin proponent Toby Doeden and securing the GOP nod for the November general election. The contest tested a new state rule that forces a runoff when no candidate clears 35 percent in a multiway primary, and it turned into a clear victory for the incumbent. This race highlighted sharp differences over taxes, crypto experimentation, and outsider energy versus governing experience.
Rhoden cruised to a decisive win in the head-to-head, with early tallies showing him well ahead and the outcome called soon after polls closed. The runoff was triggered because neither leading candidate reached the 35 percent threshold in the June primary, a rule South Dakotans invoked for the first time. That procedural twist made the summer a real stress test for GOP unity ahead of November.
In June’s multi-candidate primary, Doeden had finished first and Rhoden second, but both fell short of the 35 percent cutoff that would have stopped a runoff. Rhoden stepped into the governor’s role in early 2025 after Kristi Noem left for a federal post, giving him the advantages of incumbency and a record to run on. Doeden’s emergence as a businessman-turned-candidate introduced an outsider narrative that energized parts of the electorate.
Doeden built a public identity around Bitcoin, telling listeners he invested “very, very heavily” starting around 2020 and converting most available corporate cash into the cryptocurrency. He framed his interest as both personal conviction and public policy, publicly stating “I will buy bitcoin forever, every single day,” and adding on his podcast, “We mine bitcoin, we buy bitcoin.” That angle drew attention from crypto enthusiasts but also alarm from fiscal and pension officials who questioned risk to public funds.
Beyond talk of a Bitcoin reserve, Doeden even backed proposals to let the state’s investment managers put pension assets into digital currency, a plan that faced pushback from those who oversee budgets and long-term retirement obligations. Rhoden’s team cast those ideas as risky and politically irresponsible, arguing local services and schools could suffer if revenues were destabilized. The contrast boiled down to institutional caution versus speculative experimentation.
Property taxes wound up front and center in the runoff debate, with Doeden proposing an aggressive elimination of property levies that he said would free people from fiscal burden. Rhoden countered with a record of tax relief he signed in March and framed his approach as conservative but practical, warning that an abrupt axing of property taxes would leave communities scrambling for revenue. Voters weighed a radical plan against a steadier conservative track record when they made their choice.
Doeden leaned hard into the outsider message, declaring after the June primary that “the career politicians told me” an upstart couldn’t break through the old guard. Rhoden rejected that framing, calling the attack “such a warped viewpoint,” and stressed his legislative experience as proof he knows how to write laws and live under them. The exchange underscored the familiar Republican debate: disrupt from outside or govern effectively from within.
With the runoff decided, Rhoden will take on former Democratic state senator Dan Ahlers in November, while the broader political map still looks favorable for Republicans in South Dakota. Democrats haven’t held the governor’s office in decades, which makes this a defensive but winnable matchup for the GOP incumbent. The general election will let voters weigh Rhoden’s governing record against Ahlers’ slate of priorities.
National players stayed mostly on the sidelines as the runoff unfolded; President Donald Trump mentioned Rhoden by name during Mount Rushmore remarks but did not formally endorse in the runoff, while Doeden campaigned as a “fierce Trump supporter” who promised to help advance the “America First agenda.” That left the outcome to local Republican voters, who opted for the steady hand and policy record of their sitting governor. Now the campaign shifts to November, where fiscal responsibility and practical conservatism will be central themes.
