Prediction markets are hurtling toward a legal turning point, with the Commodity Futures Trading Commission and state regulators locked in a high-stakes tug-of-war over who gets to oversee these rapidly expanding platforms. The clash could ultimately force the U.S. Supreme Court to step in, potentially delivering a ruling by June of next year, according to Flip Pidot, a prediction market executive with nearly two decades in the industry.

“When you have a high-stakes intergovernmental conflict where a federal regulator like the CFTC is opposed in their position to a supermajority of state attorneys general… then that can get the Supreme Court’s attention,” Pidot, the chief strategy officer at PredictIt, told Fortune. He made the remark at a prediction markets event in New York City this week.

The legal landscape shifted in April when the U.S. Court of Appeals for the Third Circuit sided with Kalshi in its dispute with New Jersey. The court found that federal commodities law overrides the state’s gambling laws for the platform’s contracts, affirming a lower-court decision that allowed Kalshi to continue operating in the Garden State. But that victory may prove temporary, as several other cases could produce rulings more favorable to state regulators.

Earlier this year, a Ninth Circuit panel heard arguments over Nevada’s attempt to enforce its gambling laws against event contract platforms. The judges appeared skeptical of the arguments made by three prediction market companies. Meanwhile, over the past two months, Kalshi has appealed to the Second Circuit after adverse rulings by federal judges in New York and Connecticut. If just one of these appeals courts sides with the states over Kalshi, a circuit split will emerge—a scenario that almost certainly prompts the Supreme Court to intervene. Pidot expects that split to materialize as soon as November. If the high court agrees to hear the case, a decision would likely follow by June.

The fight comes as prediction markets have exploded in popularity across the United States over the last two years. Under the Trump administration, the CFTC adopted a more accommodating stance toward these platforms, arguing that event contracts traded on CFTC-registered exchanges fall under its exclusive authority. States have pushed back, contending that contracts tied to sports outcomes amount to unlicensed wagering, which they have the right to regulate under the 2018 Supreme Court decision that struck down the federal ban on sports betting.

That 2018 ruling, which held that the federal government cannot prevent states from allowing sports betting because it violates the Tenth Amendment, is central to the current dispute. Each state now decides whether and how to regulate sports betting. Since prediction market contracts closely resemble sports bets, states argue the CFTC is effectively usurping their power. In response, the CFTC asserts that the Commodity Exchange Act grants it sole authority over swaps and futures contracts, preempting state laws.

The economic stakes are enormous. Prediction markets threaten established gambling businesses, including casinos, and disrupt Native American economies that rely heavily on gaming revenue. At the same time, corporations and institutions are increasingly exploring prediction markets as financial tools for hedging risk. “This is top of mind for so many Americans… It has a huge potential impact on the economy, and we’ve only scratched the surface of it,” said Stephen Piepgrass, a prediction markets lawyer and partner at Troutman Pepper Locke.

Beyond a circuit split, Piepgrass noted that the constitutional questions raised by the dispute make Supreme Court review nearly inevitable. The clash between federal preemption and state sovereignty, combined with the economic disruptions, creates a legal powder keg that the highest court may be forced to defuse. The outcome will shape not only the future of prediction markets but also the broader balance of power between federal agencies and state governments over emerging financial technologies.