New Jersey asks the U.S. Supreme Court to take up a case over who regulates prediction markets offering sports-event contracts. The request seeks Supreme Court review after a key ruling by the U.S. Court of Appeals for the Ninth Circuit, and comes as similar disputes have produced different outcomes in lower courts.
According to multiple outlets, New Jersey’s petition is aimed at settling questions about whether states have statutory authority to regulate or restrict certain prediction-market platforms. Sources describe a growing split among federal appellate courts over how the relevant laws apply to these “sports-event” products.
Outlets also frame the dispute through the companies involved, with several pointing to Kalshi as a central example and mentioning other platforms such as Polymarket. NPR and other reports add that if the Supreme Court accepts the petition, it could affect regulation beyond New Jersey and potentially shape how the industry operates nationwide. Coverage also notes that federal authorities are attempting to limit state oversight, adding another layer to the legal contest.
