The South Carolina Republican governor runoff turned into a full-scale collapse for Lt. Gov. Pamela Evette this weekend as President Donald Trump decided to also endorse her opponent in Tuesday’s runoff, Alan Wilson.
Heading into the initial primary election earlier this month, the Trump-endorsed Evette was priced as high as 90% to win. She did not clear the field cleanly, leading to the runoff with second-place finisher Wilson.
In the two weeks since, former opponents coalesced behind Wilson, and Trump said Saturday that either candidate would be a good governor. Prediction markets have swapped their blowout predictions.
Heading into Tuesday’s runoff, Wilson is now priced above 95% to win, a stunning reversal from the primary phase.
Wilson takes control in South Carolina
What changed is pretty simple. The rest of the GOP field lined up behind Wilson. Former rivals have endorsed him, which has helped consolidate the non-Evette vote and turned what looked like a competitive runoff into a near-inevitable finish.
That kind of consolidation is exactly what prediction markets tend to reward, and they responded fast following the primary. Kalshi has seen more than $2.7 million traded on the race, and Polymarket traders have poured $820,000 and price him at 99% heading into Tuesday.
The shift is also what makes this runoff feel so goofy. Evette was clearly the market favorite before the initial primary, and now she is the one trying to find a path back, while Wilson has become the consensus option for everyone who is not already with her.
That is not just a swing. It is a full rerouting of the race.
Trump hedges South Carolina governor pick late
Trump going back on his tacit endorsement of Evette says a lot about where this race stands.
The president does not want to back the loser after the market, and the rest of the field has already moved against Evette. In other words, he is hedging his bet rather than making a bold new move.
That’s the political story inside the political story. Trump backed Evette earlier, but the runoff has shifted so hard that a Wilson endorsement would read less like a surprise and more like a late-stage insurance policy. He doesn’t want to lose, and that is exactly why this is starting to look like a switch rather than a stand.
Prediction markets already moved
The prediction markets have done what prediction markets do when a race gets one-sided. They stripped out the suspense and flipped even before Trump made his new endorsement. That’s different than other governor races where Trump-endorsed candidates were predicted to win big, but ultimately lost, like in Iowa.
Wilson’s odds are now above 90%, suggesting traders see this runoff as mostly settled before voters even show up. Once the former opponents started endorsing Wilson, prediction markets stopped pretending this was a toss-up.
That leaves Evette in a brutal spot. She has gone from early strength to runaway underdog in a matter of days, and the only real question now is whether anything short of a major surprise can keep this from becoming a rout. The markets say probably not.
Why it matters
This race is mostly about Trump’s influence and how fast GOP voters can realign once the field consolidates. Trump endorsements have done well in Senate races, but his state-level picks have fared worse.
On that score, Wilson’s rise is a clean example of how late endorsements and non-MAGA unity can overwhelm an early favorite, even one who had Trump’s backing. If Trump jumps in on Wilson now, it will underline the broader point: He is still trying to follow the winner, not necessarily create one.
With a clear finish line Tuesday, the market move matters more than the policy details.
