Ninth Circuit leaves Kalshi with one path left in Nevada

Nevada Gaming Control Board Chairman Mike Dreitzer said he welcomed the ruling. He would. The Ninth Circuit handed him exactly what he had been arguing for: that Kalshi's sports event contracts carry the essential characteristics of sports betting and therefore fall outside the federal preemption Kalshi has staked its expansion on.

The panel was unanimous. That matters more than the outcome itself.

Kalshi's core argument before the court was that its contracts are swaps, instruments subject exclusively to CFTC jurisdiction under the Commodity Exchange Act, and that federal commodities law forecloses state regulation of an exchange operating under a federal designation. The Ninth Circuit rejected both the characterization and the preemption claim. The judges found that what a contract is called does not settle what it does, and that the contracts at issue function as sports wagers regardless of the label applied. The court also declined to read congressional intent into the statutory framework broadly enough to displace Nevada's traditional police powers over gambling.

This is the legal mechanism worth watching, because it is the one that does not revert.

Preemption under the Supremacy Clause operates through congressional intent, express or implied. Implied preemption has two variants that matter here: field preemption, where federal regulation is so pervasive that states are excluded entirely, and conflict preemption, where state law frustrates a federal objective. Kalshi's argument required the Ninth Circuit to find that the Commodity Exchange Act occupied the field broadly enough to cover sports event contracts offered by a designated contract market. The court declined. That declination is now circuit precedent in nine western states.

The difficulty for Kalshi is that the Third Circuit went the other way in April, ruling that New Jersey could not apply its own gambling laws to the same category of contracts. The circuits are now formally split, and a formal circuit split on a statutory preemption question of this scale has a predictable destination. The Supreme Court is not guaranteed to grant certiorari, but the pressure from a split this clean, on a question this commercially significant, is real. What is not guaranteed is timing, or outcome.

I have sat across from regulatory teams that believed a federal registration was a shield broad enough to hold any state challenge. It almost never is, because state police powers over health, safety, and morals are presumed to survive federal encroachment absent an explicit congressional statement to the contrary. The Ninth Circuit read the Commodity Exchange Act and did not find that statement.

Kalshi has said it will seek further review. Given the posture, further review means the Supreme Court. The Third Circuit holding gives it standing to make the petition without manufactured urgency.