New Jersey has asked the U.S. Supreme Court to take up a dispute over whether prediction-market operators can list sports event contracts without complying with state gambling laws.

The petition targets a fast-growing regulatory fault line for platforms such as Kalshi, which operate under federal commodities oversight but have faced state-level challenges as sports-related contracts expand. New Jersey's position is that federal registration should not let an exchange bypass gambling rules that apply inside the state.

The request follows conflicting signals from federal appeals courts. Reports on the filing said New Jersey is challenging an April ruling that favored Kalshi's federal-preemption argument, while a separate Ninth Circuit decision last week moved in the opposite direction for sports-event contracts. If the Supreme Court accepts the case, it could decide how much room states have to regulate prediction markets that look economically similar to sports betting.

The issue matters beyond one operator. Prediction markets have become a larger crypto-adjacent infrastructure category, with platforms competing to list contracts on elections, sports, finance, and other real-world outcomes. A Supreme Court review could bring national clarity to a market now being shaped by separate lawsuits, state enforcement actions, and uneven interpretations of the Commodity Exchange Act.