Federal Judge Rules Utah Can Enforce Gambling Ban Against Kalshi
A federal judge has ruled that Utah's anti-gambling laws apply to Kalshi's sports event contracts, granting the state summary judgment and closing the case the prediction-market operator brought in February 2026.
U.S. District Judge Robert J. Shelby held that Kalshi's status as a federally registered exchange does not shield its bets from state law, a decision the Utah Attorney General's Office announced on August 4, 2026.
The reach of state gambling law over prediction markets matters to every US operator watching where sports betting authority sits, because Kalshi offers event contracts nationwide, including in states that license no gambling at all.
Court Rejects Kalshi’s Federal Shield
Kalshi sued Utah in February 2026, arguing that because the Commodity Futures Trading Commission regulates it as a federally registered exchange, the state could not treat its sports contracts as gambling.
The case, KalshiEx LLC v. Cox, was filed in the U.S. District Court for the District of Utah on February 23, 2026. Shelby disagreed on every point.
Gambling, the court explained, is a field traditionally regulated by the states, and Congress has supported that authority since the early 1800s.
Shelby found it implausible that Congress would have quietly reversed that position in the Commodity Exchange Act, a law written to address the 2008 financial crisis.
"State regulation of its gambling laws does not prevent the CFTC from serving the public interest in regulating derivatives markets, preventing price manipulation, ensuring financial integrity, protecting market participants, and promoting innovations," the judge wrote in his order. "Kalshi has not met its burden of showing otherwise."
Utah’s Hard Line On Gambling
Utah is unusually strict ground for the fight. The state's constitution bans gambling outright, and offering online gambling to anyone within its borders is a third-degree felony.
According to the Attorney General's Office, Kalshi's platform lists contracts on who wins a game, by what margin, which team has the longest losing streak, which player scores a touchdown and even who sings at the Super Bowl.
Utah Attorney General Derek Brown framed the win as a rejection of relabelled wagering.
"You can't rebrand illegal gambling as a federal commodity, and today a federal judge agreed with us. Kalshi bet that clever branding would beat Utah law. Kalshi lost and Utah won," Brown said in a statement. "Utah's constitution bans gambling to protect Utah families, and my office will enforce that ban. Gambling is gambling no matter what any company calls it."
The office set out its position in a statement on the ruling.
Tribes And Sportsbooks Back The State
The state did not stand alone. Twenty-three federally recognised tribes and gaming associations moved to support Utah's position, a sign of how closely tribal operators and licensed sportsbooks are tracking a product they see as unlicensed competition.
Licensed sportsbooks pay tax and meet state consumer-protection rules that prediction markets say do not apply to them.
Kalshi Vows To Appeal
Kalshi intends to fight on. Spokesperson Jacki McGavick said the company disagrees with the decision and will appeal. "Multiple courts have already recognized that prediction markets fall under exclusive federal jurisdiction, and we will continue to defend that position," McGavick said in a statement reported by the Utah News Dispatch. In its complaint, Kalshi had argued its event contracts are "subject to extensive oversight by the CFTC, and are lawful under federal law".
The ruling adds to a patchwork of conflicting outcomes as states, the CFTC and prediction-market firms argue over whether event contracts are federally regulated derivatives or plain wagers. With Kalshi signalling an appeal to the Tenth Circuit, the question of who regulates prediction markets looks set to climb higher, and possibly toward the US Supreme Court.
