Federal Judge Blocks Minnesota Prediction Market Ban as Federal Challenge Continues
Key Takeaways
- •The injunction was issued days before Minnesota’s prediction market ban was scheduled to begin on August 1.
- •Minnesota was the first U.S. state to pass a broad prohibition on prediction markets.
- •The court found the plaintiffs are likely to succeed in arguing that federal law preempts Minnesota’s statute.
- •Kalshi and Polymarket argue their contracts are federally regulated financial derivatives, not gambling products.
- •The ruling may influence other state-level challenges as courts weigh the boundary between federal regulation and state gambling laws.
A federal judge has temporarily halted Minnesota’s landmark law banning prediction markets, ruling that the measure likely conflicts with federal law and allowing platforms such as Kalshi and Polymarket to continue operating in the state while the legal dispute moves forward.
The preliminary injunction was issued just days before the law was scheduled to take effect on August 1. Minnesota became the first U.S. state to enact a broad prohibition targeting prediction markets, arguing that the products function as gambling and should fall under state oversight.
Federal Preemption at Center of Dispute
The court found that the plaintiffs are likely to succeed in arguing that the Commodity Futures Trading Commission has exclusive authority to regulate many of the event contracts offered on federally regulated prediction markets. As a result, the judge concluded that federal law may preempt Minnesota’s statute, making it unenforceable while the case is litigated.
The lawsuit was brought by the CFTC alongside prediction market operators Kalshi and Polymarket. They contend that their contracts are regulated financial derivatives rather than traditional gambling products and therefore fall under federal jurisdiction established by the Commodity Exchange Act.
Broader Regulatory Battle
The ruling marks another development in the growing conflict between state governments and prediction market operators. Several states have sought to restrict or prohibit these platforms under gambling laws, while the companies have repeatedly argued that federal law overrides state regulation.
Minnesota’s law was viewed as the most aggressive state effort so far because it would have criminalized operating or promoting many prediction markets. The injunction keeps those provisions on hold until the court reaches a final decision.
The outcome of the case could have implications well beyond Minnesota. As prediction markets expand into elections, sports, weather, and economic events, courts are increasingly being asked to define the line between federally regulated financial products and state-regulated gambling. That makes this case an important test of how far states can go in restricting these markets while federal jurisdiction remains contested, and any final ruling could influence similar legal challenges already underway in other states.