The National Football League is urging the US Supreme Court to examine a legal dispute over whether sports-related contracts offered by prediction-market platforms such as Kalshi should fall under federal or state oversight.
In a friend-of-the-court brief filed on Wednesday, the NFL supported much of a petition brought by New Jersey Attorney General Jennifer Davenport and Mary Jo Flaherty, the state’s interim director of gaming enforcement. The New Jersey officials are asking the justices to review their case against Kalshi, although the Supreme Court had not said by Thursday whether it would accept the matter.
The filing places one of the largest US sports leagues behind New Jersey’s effort to clarify the regulatory boundary between the Commodity Futures Trading Commission (CFTC) and state gaming authorities. According to Cointelegraph, the dispute could determine how prediction-market companies are regulated when their contracts are tied to sporting events.
NFL raises game-integrity concerns
The NFL argued that the case deserves Supreme Court attention partly because of the way sports contracts on prediction platforms are classified. New Jersey officials have challenged the treatment of these products as “swaps,” a category generally associated with financial markets and federal oversight. The league said the justices should consider the issue in order to protect customers and preserve the integrity of games.
The NFL also pointed to the scale of sports-related activity on prediction markets. It said that on the first Sunday of the football season, NFL-related contracts represented more than half of all prediction-market trading volume—about $1.8 billion out of $3.3 billion.
The league’s central concern is that some contracts can be influenced by a single person with the ability to affect an event. Its brief said a player could change his performance, a coach could alter a lineup, or an official could make—or decline to make—a particular call. For that reason, the NFL described many sports-event contracts on Kalshi and comparable platforms as especially vulnerable to manipulation or otherwise unacceptable.
The concern differs from the ordinary uncertainty associated with a financial market. A sports contract may depend on an event involving participants who can directly change the result or a specific in-game occurrence. The NFL said that characteristic creates particular risks for competition and for people trading the contracts.
Dispute centers on federal and state authority
The league also criticized what it described as a lack of sensible safeguards from the CFTC for sports-related event contracts. It argued that deciding whether sports betting should effectively be regulated at the federal level, rather than by individual states, presents a major question for the Supreme Court.
Prediction markets allow users to buy and sell contracts tied to the outcome of future events. Kalshi has offered contracts connected to sporting events, while maintaining that its products belong within the federal regulatory framework. New Jersey, by contrast, is seeking to apply state authority to the activity.
The legal question matters beyond the parties in this case because a ruling could clarify which regulator has jurisdiction over prediction-market contracts. It could also establish how lower courts should handle conflicts between federal market oversight and state restrictions on sports wagering.
Kalshi has been given until Nov. 9 to respond to New Jersey’s petition. The company received an extension to address questions concerning jurisdiction, the possibility that event contracts can be manipulated, and consumer protection. In comments after New Jersey’s September filing, Kalshi spokesperson Dani Lever said the company could not be regulated by 50 different regulators.
The Supreme Court’s decision to accept or reject the petition would not itself resolve the underlying dispute. If the justices grant review, however, the court could provide a nationwide answer on the division of authority between the CFTC and states.
States join New Jersey’s appeal
New Jersey is not acting alone. On Wednesday, 39 states and the District of Columbia filed a separate friend-of-the-court brief supporting the state’s position. They described the disagreement between state regulators and the CFTC as a “national turf war” that has produced uncertainty over which laws apply and which authorities can enforce them.
The states asked the Supreme Court to resolve a split among lower courts, clarify the CFTC’s powers, and provide guidance before the federal-state conflict expands. They argued that waiting could allow the disagreement to intensify and lead to further litigation involving prediction-market companies.
The New Jersey case is the first involving Kalshi that state officials have taken to the Supreme Court, but it is not the only state-level challenge facing prediction markets. Other actions could also eventually reach the justices, depending on how those cases develop.
Moneyiar market picture
Moneyiar market data at 21:38–21:39 on Oct. 8, 2026, showed mixed performance among the listed crypto assets:
- OriginTrail (TRAC) was $0.3992939564, down 2.39% over 24 hours and 12.16% over seven days.
- ORDI was $4.1423383875, down 7.01% in 24 hours and 8.7% over seven days.
- RedStone (RED) was $0.1442434309, down 3.52% over 24 hours and 18.19% over seven days.
- Ontology (ONT) was $0.0600961583, up 3.78% over 24 hours and 3.06% over seven days.
These figures provide a snapshot of the specified assets and are separate from the legal dispute over prediction-market regulation.
