Federal Court Blocks Minnesota Prediction Market Ban

A federal judge has temporarily blocked Minnesota’s recently enacted law banning prediction markets, days before its scheduled implementation. The decision marks a setback for states seeking to regulate or outlaw such platforms, citing potential irreparable harm to operators and likely success of federal challenges.

What Happened

U.S. District Judge Katherine Menendez in Minnesota issued a temporary injunction against Minnesota’s law banning prediction markets, which was set to take effect on Saturday, July 29, 2026, according to HuffPost. The law would have criminalized the creation, operation, or assistance in administering activities connected to prediction markets. Judge Menendez determined that the U.S. Commodity Futures Trading Commission (CFTC), along with operators Kalshi and Polymarket, were likely to succeed in their legal challenge against the state law and that allowing its implementation would lead to “irreparable harm” to the operators, as reported by AP News and Courthouse News.

The decision represents a new development in an ongoing conflict between the Trump administration and states regarding the regulation of prediction market platforms. Operators such as Kalshi and Polymarket, along with the CFTC, argue that federal law grants the CFTC exclusive jurisdiction over the regulation of “event-contract transactions.” Conversely, states contend that a significant portion of activity on these platforms constitutes sports betting, falling within state regulatory authority, and differs from traditional commodities and futures contracts regulated by the CFTC, according to HuffPost.

Key Details

• The Minnesota law, scheduled to take effect on July 29, 2026, would have made it a crime to operate or support prediction markets, according to the HuffPost report.
• U.S. District Judge Katherine Menendez found that the CFTC, Kalshi, and Polymarket were likely to succeed in their legal challenge, and that the law’s implementation would cause “irreparable harm” to the operators, as stated by AP News.
• Neal Kumar, Polymarket’s chief legal officer, stated that the decision clarifies that prediction markets on CFTC-registered exchanges are governed by federal law, not fragmented state regulations, according to HuffPost.
• Minnesota Attorney General Keith Ellison characterized prediction markets as “gambling, plain and simple” and asserted the state’s right to regulate them, despite disagreeing with the court’s decision, as reported by HuffPost.
• In February 2026, then-President Donald Trump’s appointee at the CFTC declared that the agency would no longer tolerate states regulating or banning prediction markets, citing the agency’s exclusive jurisdiction, the HuffPost article noted.

Why It Matters

This federal court decision highlights the contentious jurisdictional dispute between federal and state authorities over the regulation of prediction markets. The temporary injunction against Minnesota’s law underscores the legal complexities surrounding these platforms, particularly concerning whether they fall under federal commodities regulation or state gambling statutes. The outcome could significantly influence how prediction markets are regulated nationally, potentially signaling the preemption of state-level bans by federal oversight, as indicated by the ‘Reason’ article. This judicial intervention is part of a growing trend of legal challenges, including federal lawsuits against Connecticut, Arizona, and Illinois, and state lawsuits like New York’s against Coinbase and Gemini, all aiming to clarify regulatory authority over these emerging financial instruments, according to HuffPost.

The broader implications for the regulated markets, including the iGaming and financial sectors, are substantial. The American Gaming Association estimates over $1.2 billion in tax revenue has been lost from wagers since prediction markets began offering sports event contracts, as reported by HuffPost. Additionally, Native American tribal leaders and gambling regulators also maintain that such betting constitutes unlawful gambling. The ongoing conflict between state efforts to regulate what they perceive as gambling and the CFTC’s assertion of exclusive jurisdiction creates regulatory uncertainty for operators and potential investors in these markets.

Originally reported by HuffPost·Published 28 Jul 2026, 19:42