Federal Judge Blocks Minnesota Ban on Prediction Markets Days Before Enforcement

Federal Court Halts First-of-Its-Kind State Ban

A federal judge has temporarily blocked Minnesota’s first-in-the-nation law banning prediction markets just days before it was set to take effect. The Monday ruling represents the latest clash between President Donald Trump’s administration and states over who regulates operators such as Kalshi and Polymarket. U.S. District Judge Katherine Menendez issued the temporary restraining order that prevents the law from taking effect while the lawsuit proceeds through the federal court system. The decision marks a significant setback for states attempting to outlaw or regulate the fast-growing prediction market platforms.

Judge Menendez found that the U.S. Commodity Futures Trading Commission, Kalshi, and Polymarket were likely to succeed in their challenge to the law. She ruled that letting it take effect would cause “irreparable harm” to the operators. The law was scheduled to take effect Saturday. It would have made it a crime to create or operate prediction markets or help administer nearly any activity connected to one.

Legal Battle Over Federal Versus State Authority

The core legal dispute centers on whether federal or state authorities have jurisdiction over prediction markets. Kalshi, Polymarket, and the Commodity Futures Trading Commission want the law permanently blocked and argue that federal law gives the CFTC exclusive jurisdiction to regulate the type of “event-contract transactions” offered by these platforms. The federal regulatory body maintains that prediction markets fall under its purview as commodities and futures contracts. This jurisdictional claim forms the foundation of their legal challenge.

States counter that the vast majority of business on prediction market platforms is sports betting. They argue they are empowered to regulate this activity, and it is completely different from the commodities and futures contracts historically regulated by the commission. State officials view these platforms as gambling operations rather than legitimate financial markets. The fundamental disagreement pits traditional state authority over gambling against federal oversight of financial instruments.

Minnesota Attorney General Defends State’s Right to Regulate

“Prediction markets are gambling, plain and simple. And Minnesota has every right to keep predatory gambling out of our communities,” Minnesota Attorney General Keith Ellison said in a statement Tuesday.

Ellison said his office disagrees with the court’s decision that the “proper ‘status quo’ to maintain is one that allows predatory gambling apps to proliferate.” He acknowledged the legal issues are complex and said he planned to continue defending the state’s law. The attorney general’s stance reflects broader concerns among state officials about the rapid growth of prediction markets and their potential impact on vulnerable populations. His office views the platforms as predatory gambling operations that should be subject to state oversight.

Prediction Market Operators Claim Federal Supremacy

Neal Kumar, Polymarket’s chief legal officer, said in a statement that the decision makes clear that prediction markets on commission-registered exchanges “are governed by federal law, not a patchwork of state rules.” The company argues that allowing individual states to regulate prediction markets would create an unworkable regulatory environment. Polymarket positions itself as a federally regulated financial platform rather than a gambling operation.

Elisabeth Diana, a Kalshi spokesperson, said in a statement that “states cannot ban things that they don’t have jurisdiction over.” The company maintains that its operations fall squarely within federal regulatory authority. Kalshi has positioned itself as a CFTC-registered exchange operating under federal oversight, and company officials argue this federal registration preempts state attempts at prohibition.

Trump Administration’s Role in the Dispute

Judge Menendez’s decision follows a declaration in February by President Trump’s appointee atop the Commodity Futures Trading Commission. The agency stated it holds primary regulatory authority over prediction markets. The Trump administration’s CFTC has taken a notably friendly stance toward these platforms, aligning with the operators in their legal battles against state regulations. This federal support represents a significant advantage for prediction market companies facing state-level restrictions.

The federal agency’s position marks a departure from previous regulatory uncertainty surrounding prediction markets. By asserting exclusive jurisdiction, the CFTC has effectively positioned itself as the primary gatekeeper for these platforms. This stance has emboldened prediction market operators to challenge state laws more aggressively, knowing they have federal backing in jurisdictional disputes.

Implications for Other States and Future Regulation

The ruling creates uncertainty for other states considering similar legislation because it suggests that federal courts may sympathize with prediction market operators and the Trump administration’s CFTC when they advance preemption arguments. Several states have been watching Minnesota’s legislative effort closely, considering whether to pursue their own restrictions. This decision will likely influence their calculations about the viability of state-level bans.

The case highlights the broader regulatory challenges posed by emerging financial technologies that blur traditional boundaries. Prediction markets occupy a gray area between gambling and financial trading, creating jurisdictional disputes over which level of government should exercise oversight. The outcome of this lawsuit could establish precedent affecting how states can regulate innovative financial platforms. While the law will remain blocked during the lawsuit, the final resolution could reshape the regulatory landscape for prediction markets nationwide.

The temporary restraining order preserves the current operational status for Kalshi and Polymarket in Minnesota while the legal arguments proceed. The platforms continue operating as the federal court weighs competing claims about regulatory authority. Industry observers expect the case to attract significant attention as it moves through the judicial system, given its potential to clarify the division of regulatory power over these rapidly evolving platforms that have gained prominence in recent years.