New Jersey Appeals to Supreme Court on State Control Over Kalshi Sports Betting Regulation

This case could redefine the regulatory landscape for a $16.89 billion industry, impacting state revenues and consumer rights.

• New Jersey filed a petition with the U.S. Supreme Court on September 2, 2026, challenging the regulatory authority over Kalshi's sports contracts.
• A circuit split emerged: The Third Circuit ruled Kalshi's contracts as swaps under federal jurisdiction, while the Ninth Circuit classified them as gambling subject to state laws.
• The stakes are high: The outcome could affect billions in state revenues and consumer protections across the U.S.

• Kalshi operates prediction markets that offer contracts on sports outcomes, claiming they are swaps exempt from state gambling laws.
• The 2018 Murphy v. NCAA decision legalized state sports betting, leading to Kalshi's expansion and subsequent legal challenges in over 20 states.
• Conflicting rulings from different circuits have created uncertainty, prompting New Jersey to seek clarity from the Supreme Court.

The legal dispute centers on whether Kalshi's sports event contracts should be classified as swaps under the Commodity Exchange Act or as gambling subject to state regulation. The Third Circuit's ruling in April 2026 determined that these contracts meet the statutory definition of swaps, thus falling under the exclusive jurisdiction of the U.S. Commodity Futures Trading Commission (CFTC). This decision effectively barred New Jersey from enforcing its gambling laws against Kalshi.

In contrast, the Ninth Circuit's unanimous ruling just days before New Jersey's petition asserted that Nevada could regulate Kalshi's offerings as gambling. This split in judicial interpretation has significant implications for the future of sports betting and prediction markets in the U.S.

New Jersey's petition argues that Congress did not intend for the Dodd-Frank Act to preempt state gambling laws, emphasizing the importance of state authority in regulating a multi-billion-dollar industry. The stakes are particularly high for New Jersey, which generated approximately $16.89 billion in sports betting revenue in 2025, with 95% of Kalshi's revenue derived from this sector.

The outcome of this case will not only affect the operational landscape for Kalshi but also set a precedent for how prediction markets are regulated across the country. If the Supreme Court sides with the Third Circuit, it could lead to a federal monopoly over prediction markets, undermining state authority and potentially reducing consumer protections. Conversely, a ruling in favor of state regulation could empower states to impose stricter oversight and taxation on these markets, reshaping the competitive landscape.

As litigation continues in multiple jurisdictions, the CFTC has intervened in support of Kalshi, asserting its exclusive jurisdiction over designated contract markets. This ongoing legal battle highlights the tension between federal and state regulatory frameworks, with implications that extend beyond the immediate parties involved.

• State governments: Potential loss or gain in tax revenues from sports betting.
• Consumers: Changes in protections and options available for betting on prediction markets.
• Kalshi and similar platforms: Operational viability and compliance with state laws.
• Legal professionals: Increased demand for expertise in regulatory compliance and litigation.

• Supreme Court's decision timeline: The timing of the Court's review will indicate how quickly the regulatory landscape may shift.
• State responses: Watch for legislative changes or new regulations in states affected by the ruling.
• Market reactions: Monitor how prediction markets and sports betting platforms adjust their operations in response to ongoing litigation.