Wisconsin Democrats got the candidate their centrist wing wanted, but only after one of the year’s biggest prediction market misses.
Milwaukee County Executive David Crowley narrowly defeated state Rep. Francesca Hong, 39.81% to 39.34%, in Tuesday’s Democratic gubernatorial primary, ending a campaign that markets had largely treated as settled in Hong’s favor.
Hong went into Election Day at roughly 95% on Kalshi and 96% on Polymarket. She had led public polling by double digits and had become the latest symbol of a progressive wave that had already produced high-profile wins in Michigan, New York and Colorado.
But Crowley’s late surge, boosted by outgoing Gov. Tony Evers’ endorsement and concerns about Hong’s general-election profile, even from national progressive leaders, turned a supposed runaway into a photo finish.
Prediction markets have not totally missed on many primary elections this year, but this is not the first case. There have been other whiffs, like when traders expected South Carolina Lt. Gov. Pamela Evette to easily win her primary for governor before being forced into a runoff where she lost to South Carolina Attorney General Alan Wilson.
A huge market miss
This was not a case of markets picking the winner but missing the margin, like what happened in Michigan’s Democratic Senate race. They picked the wrong winner entirely.
Hong’s 95–96% price implied that Crowley’s upset was a low-probability event. Instead, the Milwaukee County executive won by less than a percentage point after delayed absentee-ballot reporting from Milwaukee added to an already tense count.
Hong conceded rather than seek a recount, even though the margin was narrow enough that she could have requested one.
The miss looks especially notable after Michigan’s Senate primary last week. Abdul El-Sayed was trading in the high 90s there as well, and while he won, he did so only narrowly over the more centrist Rep. Haley Stevens. Wisconsin took that same pattern one step further. Markets and polling pointed toward a progressive blowout, while the vote delivered a centrist upset.
That doesn’t mean prediction markets are useless. Hong had a real advantage in the available polling, and Crowley’s win was genuinely surprising. But it does reinforce the lesson from Michigan: A high probability is not a guarantee, particularly in a crowded, volatile primary where late turnout and candidate consolidation can reshape the electorate.
The progressive wave hits resistance
Hong’s loss does not erase the progressive movement’s strong 2026 midterm election primary season. In Minnesota on Tuesday, Lt. Gov. Peggy Flanagan defeated Rep. Angie Craig to win the Democratic Senate nomination, another major victory for the left over the party’s more centrist wing.
Progressives have also claimed major successes in Michigan, New York and Colorado, showing their ability to organize and win Democratic primaries around economic populism and dissatisfaction with the establishment.
But Wisconsin shows that the wave is not universal. Hong had the clearer ideological label, strong early polling and a major market edge, but Crowley’s coalition held together in the places that mattered. The outcome gives party moderates a powerful counterexample to the narrative that the base is automatically choosing its most progressive option in every important contest.
It also complicates the argument Democrats have been having all cycle. The progressive left says its candidates offer the energy and economic message needed to turn out voters who normally sit out. Centrists argue that a purple state like Wisconsin requires a nominee who can reassure independents, suburban voters and less ideological Democrats.
Crowley’s victory does not prove the latter argument is right in November, but Wisconsin Democratic primary voters decided it was worth testing.
Crowley gets the electability case
Crowley now faces Republican Rep. Tom Tiffany, a President Donald Trump-endorsed candidate who easily won his own primary. He spent much of the campaign making a direct electability argument: Hong’s progressive identity might be powerful in a Democratic primary, but it could be a liability in a state that backed Trump in 2016 and 2024, while narrowly supporting former President Joe Biden in 2020.
Some polling gave Crowley’s argument credibility. He performed better than Hong against Tiffany in at least one available general election survey, a result that became central to the final argument from Evers and other Democratic establishment figures.
Crowley’s victory does not resolve whether that edge will hold with the full electorate, but it gives Democrats a nominee who was chosen specifically because voters likely believed he could compete more effectively in November.
That makes Wisconsin a different kind of test now. The question is no longer whether a progressive can win the primary. It is whether the centrist candidate Democratic voters selected as the safer bet can actually outperform the progressive they passed over in one of the country’s most closely divided states.
Prediction markets now have Crowley ahead in November after leaning Republican before Tuesday. Kalshi has Crowley at 78% on nearly $700,000 in volume, with Polymarket similar on $161,000.
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