Utah has become the latest flashpoint in the fight over who regulates prediction markets. The Commodity Futures Trading Commission (CFTC) this week filed a lawsuit to block state enforcement aimed at stopping platforms such as Kalshi from operating there.
The lawsuit, announced Tuesday (Oct. 27), escalates a nationwide clash over whether federally regulated event contracts fall under the CFTC’s exclusive authority or remain subject to state gambling prohibitions. Utah’s constitution bars its Legislature from authorizing gambling, making the dispute a particularly direct test of federal preemption against longstanding state policy.
The CFTC said Utah had filed civil enforcement actions in state court against federally regulated markets and other businesses. The agency argued those actions obstruct Congress’ decision to preempt state law governing CFTC-registered exchanges.
According to CoinDesk, Utah had already prevailed against Kalshi in federal district court, with that case under appeal, before the commission brought its own challenge. The new lawsuit adds the federal government’s institutional interests to a dispute previously fought by the platform itself.
Utah Attorney General Derek Brown laid out the state’s position in an Oct. 20 declaration naming gambling as a public nuisance causing substantial ongoing harm. The declaration addresses gambling broadly, rather than formally declaring prediction markets a separate category of nuisance. But the implication was clear.
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“Gambling no longer lingers in distant casinos or back rooms. Today it grabs Utahns instantly through phones and online platforms designed to draw people in before they recognize the risks,” Brown wrote. “[O]ne platform publicly reported more than 30,000 Utah account holders as of February 2026.”
He cited Utah Code section 78B-6a-102(2) as authorizing him to sue on behalf of the state and its residents. His declaration described financial distress, family conflict and wider community harms, arguing that online platforms bring gambling directly into Utahns’ homes through their phones.
“Gambling is gambling, no matter what any company calls it,” Brown said. He also warned: “Anyone offering gambling to Utahns is on notice that it is illegal in Utah and that no Utah law authorizes it.”
The CFTC frames the same activity as federally supervised derivatives trading. Chairman Michael S. Selig said event contracts serve hedging and investment purposes while providing information about future events. The commission maintains that state efforts to close registered markets intrude on authority Congress assigned exclusively to the federal regulator.
“As I’ve said before, the CFTC has the expertise and responsibility to defend its exclusive jurisdiction over commodity derivatives, and that’s exactly what we’ll do,” Selig said in the agency’s release.
The commission said it had initiated proceedings against nine other states and submitted briefs in four federal appeals courts and one state supreme court. Its Utah action extends that campaign, with the agency pledging to protect federal sovereign interests whenever states challenge an exchange’s lawful operation.
Courts have yet to deliver a consistent answer. CoinDesk reported that three federal appellate decisions had split, with two favoring states and one favoring Kalshi. Former CFTC Chairman Gary Gensler and former Sen. Chris Dodd have also filed Supreme Court briefs supporting the states’ position.
For prediction market operators, the dispute leaves a central compliance question unresolved: whether federal registration shields their offerings from state gambling enforcement. Utah’s public nuisance approach adds another enforcement mechanism to that uncertainty, potentially exposing platforms to litigation beyond conventional gambling prosecutions. The competing lawsuits will test both the reach of the CFTC’s derivatives jurisdiction and states’ ability to enforce gambling restrictions against federally registered platforms.
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