Kalshi, a U.S. prediction-market platform, filed a federal lawsuit challenging a new Minnesota law that criminalizes the operation and advertisement of such platforms.
The legal battle highlights a growing conflict between state-level prohibitions and federal regulations governing event contracts. If the law stands, it could create a fragmented regulatory landscape where federally approved financial activities are treated as felonies in specific jurisdictions.
Governor Tim Walz signed the legislation earlier this month in May 2026 [2]. The law is scheduled to take effect on Aug. 1, 2026 [1]. Under the new statutes, it is a felony to operate a prediction-market platform, or to advertise such services within the state [3].
Kalshi argues that the law unlawfully targets event contracts that are regulated at the federal level. The company said the legislation criminalizes an activity already regulated by the Commodity Futures Trading Commission (CFTC) [1], [4].
While some reports suggest the CFTC is also taking legal action against Minnesota, other sources indicate the agency is currently litigating against Rhode Island instead [1], [2]. The discrepancy remains a point of contention among industry observers.
Kalshi is seeking to stop the state from enforcing the ban, asserting that the federal government maintains primary authority over these specific financial instruments. The platform's challenge focuses on whether a state can designate a federally regulated activity as a felony [4], [5].
“The law is scheduled to take effect on Aug. 1, 2026.”
This lawsuit tests the boundaries of the Commerce Clause and federal preemption. By designating prediction markets as felonies, Minnesota is taking a more aggressive stance than most states, which typically treat such activities as unregulated gambling. The outcome will determine if the CFTC's federal oversight of event contracts overrides state criminal codes, potentially setting a precedent for how other states regulate emerging fintech and prediction-based trading platforms.
