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Former Senator Chris Dodd, former CFTC Chair Gary Gensler, the NFL, 39 states plus the District of Columbia, and 145 tribal nations all filed amicus briefs last week urging the Supreme Court to take up the fight over sports-based prediction markets. Most argue the contracts are gambling products that belong under state regulation, not swaps subject to CFTC jurisdiction. The filings landed days before the CFTC issued an interim final rule, already in effect, and a separate proposal declaring that event contracts covering sports, politics, cultural and weather events count as swaps.
Why it matters
The case reaches the high court amid a genuine circuit split: two appellate courts have ruled that prediction markets touching sports are gambling products regulated by the states, while the Third Circuit ruled 2-1 that the CFTC has jurisdiction over them as swaps. Dodd's brief argues the Dodd-Frank Act was never intended to let the CFTC usurp state gambling authority, noting that parlays chaining together wagers across games do not facilitate hedging or price discovery, the core functions that would qualify them as swaps. Gensler, who helped draft the implementing regulations, made a parallel argument, and the NFL attacked what it called the CFTC's laissez-faire approach and the divergence between state gambling rules and federal designated contract market licenses.
Market impact
Until the Supreme Court says whether it will grant cert, prediction market platforms face a two-track risk: a ruling for the states would force sports event contracts into state-by-state gambling licensing, while a ruling for the CFTC would cement the federal swap framework the agency just codified. Kalshi, the main venue exposed to the outcome, secured an extension and must file its response by Nov. 9, 2026.
Frequently asked questions
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What is the circuit court split on prediction markets?
Two appellate courts have ruled that sports-based prediction markets are gambling products regulated by the states, while the Third Circuit ruled 2-1 that the CFTC has jurisdiction over them as swaps. Only the Supreme Court can resolve the conflict.
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Why did Chris Dodd file a brief against CFTC jurisdiction?
Dodd, whose name is on the Dodd-Frank Act at the center of the dispute, argued the law was never meant to let the CFTC preempt state gambling laws, and that parlays do not facilitate the hedging or price discovery required to qualify as swaps.
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What did the CFTC propose on prediction market contracts?
On Friday the CFTC issued an interim final rule, now in effect, and a separate proposal stating casino-style gambling falls outside the swap definition, but event contracts covering sports, politics, cultural and weather events remain within it.
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What is Kalshi's deadline to respond to the Supreme Court?
Kalshi asked for and received an extension, so its response to the Supreme Court in the prediction markets case is now due Nov. 9, 2026.
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Who filed amicus briefs in the Supreme Court prediction markets case?
Former Senator Chris Dodd, former CFTC and SEC Chair Gary Gensler, the NFL, 39 states plus the District of Columbia, and 145 tribal nations, among others, with most urging the court to side with state regulators.
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