Minnesota just became the first state to outlaw prediction markets, and the federal government got involved within hours.
The two sides aren't even pretending to compromise.
Governor Tim Walz signed legislation on May 19 that turns running a prediction market in Minnesota into a felony, with the ban covering bets on sports, weather, popular culture, war, and death.
Platforms like Kalshi and Polymarket would have to either pull out of the state or face criminal charges when the law takes effect August 1, 2026.
Kalshi spokeswoman Elisabeth Diana compared the move to banning the New York Stock Exchange, arguing that the law will push activity offshore and reduce competition for two platforms that have each grown into multi-billion-dollar businesses on bets on elections, weather, and sports.
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The Commodity Futures Trading Commission, the federal regulator with authority over commodity futures, sued Minnesota the same day Walz signed the bill. The agency wants a preliminary injunction before the law goes into effect.
The CFTC's argument is straightforward, since Congress gave it sole authority over event contract markets and state criminal laws can't override that. Chairman Michael Selig said the Minnesota law "turns lawful operators and participants in prediction markets into felons overnight."
The agency also pointed out that Minnesota farmers already use weather and crop futures contracts to manage risk, which could get caught up in the same prohibition. That detail matters, since Minnesota is one of the largest farming states in the country.
This is the first explicit state-level felony ban on prediction markets, but it isn't the first fight. More than 20 lawsuits have been filed over whether states or the federal government control the prediction market industry.
The stakes go beyond Kalshi and Polymarket, since the entire framework for derivatives and event contracts starts to wobble if states can override federal rules by labeling contracts as gambling.
For platforms valued in the billions, that's not a small question. And for the investors backing them, it's the kind of regulatory cliff that can wipe out a valuation overnight.
The case heads to federal court before August 1, and if the judge sides with the CFTC, the law gets paused. If the judge sides with Minnesota, expect a wave of copycat state bills and a much harder business model for every prediction market operating in the US.
This is the fight that decides whether prediction markets remain a national industry or get cut up state by state.
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