New York wins federal court case against state preemption

New York becomes the first state to defeat a preemption claim in federal court

Attorney General Letitia James did not need to file a single brief. Judge Colleen McMahon did the work for her, ruling from the Southern District of New York that Novig's sports event contracts are not swaps under the Commodity Exchange Act — which means New York's gambling laws apply, and Novig's request to block state enforcement dies with that finding.

The ruling is the first time a federal court has resolved the preemption question against a prediction market operator on the merits. That distinction matters more than the headlines around it suggest. Prior state victories came through procedural channels, through injunctions denied on standing grounds or restraining orders that left the underlying legal question open. McMahon closed one version of that question. She said the product is not what the operators claim it is, and therefore the federal shield they have been invoking does not reach it.

Kalshi's lawyers have been building their entire defensive architecture on CEA exclusivity — the argument that because the CFTC has jurisdiction over swaps, states cannot touch prediction market contracts at all. That argument survives McMahon's ruling only if you believe Kalshi's contracts are categorically different from Novig's. They may be. The CFTC has repeatedly said Kalshi's designated contract market status places it on different legal ground. But McMahon's reasoning, once it enters the case law, gives every state attorney general a template. Louisiana's Liz Murrill filed her restraining order against ten operators the same week. She cited the same gambling-not-swaps logic. The timing is not coincidental.

I have watched preemption arguments collapse in stages before — not in prediction markets, but in adjacent regulatory fights where industry moved faster than the statute could accommodate. The pattern is consistent: the first federal loss reframes every subsequent state action from aggressive overreach into reasonable enforcement. The operators who were defendants become, in the public record, defendants who lost. That reframing has lobbying consequences, legislative consequences, and settlement consequences that the market has not yet absorbed.

The consensus read is that Kalshi's DCM status insulates it from McMahon's logic and that the Louisiana proceeding is noise. I think that underweights what happens when state attorneys general coordinate around a federal court opinion rather than around each other. The Sixth Circuit's ruling gave them a circuit. McMahon's ruling gives them a district court holding on the merits. The gap between those two things and a split circuit is narrower than the lobbying spend suggests.