Prediction-market regulation battle shown through event-contract order books, court filings, and federal market oversight panels.

CFTC Sues Minnesota to Block First State Felony Ban on Prediction Markets

By Isaac • May 19, 2026 4:48 pm • Comments

The Commodity Futures Trading Commission filed a lawsuit against Minnesota on Tuesday to block a new state law that would make operating or assisting in the operation of a prediction market a criminal felony.

The law was signed by Governor Tim Walz and is set to take effect August 1, 2026.

The CFTC is seeking a preliminary injunction to stop the ban before that date, calling it a direct threat to federally regulated event-contract markets.

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CFTC Chairman Michael Selig put it bluntly on X.

The agency’s formal announcement laid out the stakes in clear terms.

As reported by the CFTC:

According to CFTC: The Commodity Futures Trading Commission announced that it filed a lawsuit against Minnesota to block a new state law signed by Governor Tim Walz. The CFTC said the law would make operating or assisting in the operation of a prediction market a criminal felony.

The agency is seeking a preliminary injunction to stop the law before it goes into effect on August 1, 2026. The regulator quoted Chairman Michael Selig saying the law would turn lawful operators and participants in prediction markets into felons overnight.

The release establishes the litigation posture, the date, the state-law penalty, the requested injunction, and the CFTC’s federal-jurisdiction argument. It also shows how quickly the agency is moving to prevent Minnesota’s law from becoming a model for other states.

The CFTC said the law was signed by Governor Tim Walz and would make operating or assisting in the operation of a prediction market a criminal felony. The CFTC said it is seeking a preliminary injunction to stop the law from going into effect on August 1, 2026.

Chairman Selig said the Minnesota law would turn lawful operators and participants in prediction markets into felons overnight.

That is a remarkable charge from a sitting federal regulator. It frames the lawsuit as a defense of federal jurisdiction, not an abstract policy disagreement.

According to The Block, this is the first explicit state ban on prediction markets to face a federal lawsuit.

According to The Block: The Block reported that the federal lawsuit challenges Minnesota’s first explicit state ban on prediction markets. The article said the fight comes amid a broader clash between state gambling regulators and federally regulated prediction-market platforms like Kalshi and Polymarket.

That framing matters because the story is larger than local Minnesota legislation. It is a market-structure fight over whether prediction markets should be treated as CFTC-regulated event-contract venues or as state-regulated gambling products.

The lawsuit also arrives as prediction-market platforms are becoming more visible in crypto and capital-markets coverage. The CFTC quoted Chairman Michael Selig saying the Minnesota law turns lawful operators and participants in prediction markets into felons overnight.

The Block reported that the lawsuit targets what it called the first explicit state ban on prediction markets. The Block said the lawsuit is part of a broader jurisdictional clash between state gambling regulators and federally regulated prediction-market platforms like Kalshi and Polymarket.

NPR-affiliated coverage said Minnesota’s law tees up a legal battle over popular services like Kalshi and Polymarket. Cointelegraph reported on May 19, 2026 that Polymarket launched prediction markets tied to private companies using Nasdaq Private Market data.

The central question is jurisdictional. Minnesota treats prediction markets as gambling.

The CFTC treats them as event-contract venues under federal commodity-market law.

Both positions cannot hold at the same time. If Minnesota’s felony ban survives, other states could copy the model and effectively outlaw platforms like Kalshi and Polymarket on a state-by-state basis.

Minnesota is also not the only front. A telephone hearing in a separate CFTC lawsuit against Connecticut is already scheduled for May 27.

The timing matters because prediction markets are expanding rapidly. On the same day the CFTC filed the Minnesota suit, Polymarket announced new markets tied to private companies using Nasdaq Private Market data.

As Cointelegraph reported, the new Polymarket products let users trade on fundraising rounds, valuation milestones, IPO timing, and other startup events.

According to Cointelegraph: Cointelegraph reported on the same day that Polymarket launched prediction markets tied to private companies using Nasdaq Private Market data. The new markets let users trade on fundraising, valuation, IPO timing, and other startup milestones.

That context helps explain why the Minnesota lawsuit has national crypto-market importance. Prediction markets are fighting state bans and gambling-law arguments while also moving deeper into financial data, private-company price discovery, and event-contract products.

Cointelegraph said the new products can touch companies such as OpenAI, Anthropic, SpaceX, Stripe, Databricks, and Kraken. NPR-affiliated coverage said Minnesota’s law tees up a legal battle over popular services like Kalshi and Polymarket.

The CFTC announced on May 19, 2026 that it filed a lawsuit against Minnesota to block a new state law. The CFTC said the law was signed by Governor Tim Walz and would make operating or assisting in the operation of a prediction market a criminal felony.

Taken together, the developments show why prediction-market regulation is no longer a niche gambling-law question. It is becoming a national fight over event-contract markets, private-company data, and federally supervised crypto-adjacent trading venues.

Prediction markets are moving deeper into financial data and private-company price discovery. That expansion is exactly why the federal-versus-state fight over who regulates these venues has real market consequences.

If the CFTC wins the injunction, the federal framework holds and platforms keep operating under commodity-market rules. If Minnesota’s law stands, every state gambling commission in the country has a template for shutting prediction markets down inside their borders.

The August 1 deadline gives the court a narrow window. This one will move fast.

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