In a significant legal development, federal Judge Katherine Menendez ruled that Minnesota’s law banning prediction markets likely violates the Commodity Exchange Act, granting Kalshi and Polymarket a preliminary injunction alongside the Commodity Futures Trading Commission (CFTC).
The case hinges on the Commodity Exchange Act’s preemption of state laws that interfere with swaps regulation. This echoes earlier CFTC warnings about prediction market event contracts, as the agency had cautioned against cutting corners in submissions (CFTC Warns Prediction Markets Against Cutting Corners in Event Contract Submissions).
The Legal Reasoning: Preemption and CFTC Jurisdiction
Judge Menendez determined that the three plaintiffs—Kalshi, Polymarket, and the CFTC—are likely to succeed in their argument that federal commodity law preempts the recently passed Minnesota statute. The state law had criminalized the operation of prediction markets, but the court found that such contracts are structured as swaps and fall under the exclusive oversight of the CFTC. The ruling emphasizes that states cannot independently bar activities that Congress explicitly placed within the jurisdiction of a federal regulator.
The preliminary injunction halts enforcement while the full case proceeds, preserving the status quo for prediction market operators in Minnesota. The decision aligns with a growing body of legal reasoning that sees the CEA as a floor for derivatives oversight, preventing fragmented state-by-state bans.
What This Means for the Future of Prediction Markets
This ruling could set a precedent for other states considering similar restrictions. It signals that federal courts may view state-level prohibitions on prediction markets as an overreach that conflicts with the CFTC’s statutory role. For platforms like Kalshi and Polymarket, the injunction reduces immediate legal risk and may encourage further product expansion. However, the full case remains unresolved, and the CFTC’s own evolving approach to event contracts will continue to shape the landscape. Observers will watch whether this decision influences legislative efforts or leads to clearer federal guidelines for digital prediction markets.
