New Jersey on Wednesday petitioned the Supreme Court to intervene in a widening legal clash over who holds regulatory power over prediction markets, a dispute that has produced split rulings in lower federal courts. The filing marks the first time the issue has reached the justices.
In a statement, state Attorney General Jennifer Davenport (D) argued that platforms such as Kalshi are effectively offering sports betting nationwide while ignoring state gambling statutes. "Companies like Kalshi claim to offer legal sports betting in all 50 States, but they refuse to follow the gambling laws of any State," she said. "These companies have no right to offer their sports bets without following state law, which is why dozens of States across the ideological spectrum have opposed them."
The legal battle began last year when Kalshi sued New Jersey, seeking to block the state from enforcing its gambling regulations against the platform. Prediction markets allow users to wager on the outcome of political events, economic indicators, and other occurrences. Their operators contend that their products are not traditional gambling but rather futures contracts, and that they fall under the exclusive oversight of the Commodity Futures Trading Commission (CFTC).
That federal framework, they argue, preempts state law. But a growing number of states have rejected that view, insisting that prediction markets are subject to their own gambling rules, licensing requirements, and taxes. The conflicting appellate decisions have created uncertainty for the industry and for state regulators.
Davenport emphasized the public interest at stake. "States have long adopted careful laws to regulate gambling, including to prevent compulsive gambling, gambling by minors, and insider trading on sports games," she said Wednesday. "We're calling on the Supreme Court to resolve this issue and recognize that Congress did not silently make the sports-betting industry immune from state law."
The petition arrives amid broader scrutiny of how prediction markets function and their implications for public discourse and financial regulation. Some legal experts say the Court's decision could set a precedent for how emerging financial technologies interact with state police powers.
Observers note that the Supreme Court has shown increasing willingness to address novel federalism questions, particularly in cases involving judicial emergency dockets. A ruling could also affect other states that have enacted their own restrictions on prediction platforms.
Kalshi and its supporters maintain that the CFTC's oversight provides sufficient consumer protections and that subjecting the platforms to a patchwork of state laws would stifle innovation. They have pointed to the agency's approval of certain prediction contracts as evidence of federal endorsement.
The Supreme Court is expected to consider the petition in the coming months. If granted, the case would likely be argued in the next term, drawing attention from both the financial sector and state attorneys general across the country.
