A Superior Court judge in King County found, on the record, that Kalshi is likely violating Washington state gambling law, and ordered the platform to stop accepting contracts on sports, elections, politics, entertainment, culture, technology, and science from residents of the state. Judge John McHale's order does not resolve the underlying case. It is a preliminary injunction, which means he found a likelihood of success on the merits sufficient to impose restrictions now, before trial.
That distinction matters more than the headline number of blocked categories.
A preliminary injunction in a state court proceeding is not a finding that Kalshi violated the law. It is a finding that the state has demonstrated enough to justify interim harm prevention while the legal question is resolved. The legal question, stripped of its novelty, is the same one that has been working its way through multiple jurisdictions: whether CFTC designation of an event contract under the Commodity Exchange Act preempts state-level gambling enforcement.
Kalshi's federal preemption argument has had some purchase in federal courts, where the Supremacy Clause analysis begins from the premise that Congress intended CFTC oversight to occupy the field for designated contract markets. A state court proceeding starts from a different premise. Judge McHale did not need to resolve whether federal law ultimately governs. He needed to find that Washington's gambling statute applied on its face and that enforcement was not so clearly barred by federal law as to make the state's case futile. That is a lower threshold, and he appears to have cleared it.
The breadth of the restricted categories is worth attention. Sports and elections were predictable targets, given how gambling regulators have historically drawn lines. But technology, science, and entertainment contracts are not categories that state gambling statutes were written to reach. The fact that McHale's order extends to them suggests the court read Washington's statute broadly, applying it to the contract structure rather than the subject matter.
Kalshi is simultaneously contesting a geofencing fine from Nevada's regulator, facing a consumer protection lawsuit filed by the city of Baltimore alongside Polymarket, and operating under the shadow of the CFTC's escalating intervention in the New York litigation. Each of these proceedings turns on a slightly different legal theory. Nevada's dispute is administrative. Baltimore's is a consumer protection ordinance. Washington's is a preliminary injunction in a state gambling enforcement action. None of them is dispositive. Together they represent something more significant: the systematic testing of the preemption perimeter from every direction simultaneously.
The CFTC's designated contract market framework was designed to create federal uniformity for derivatives markets. What it was not designed to anticipate is a generation of retail-facing platforms offering binary outcome contracts on whether a film wins an Oscar or whether a technology company announces a product. The regulators who drafted those rules, and the legislators who authorized them, were not thinking about those products. Whether the framework covers them anyway is the legal question that will eventually require a definitive federal answer.
What the consensus analysis misses is that preliminary injunctions in state court proceedings can run for years. Kalshi can continue operating elsewhere in the country. But Washington state is not a small market, and an injunction that survives appeal becomes a practical operating constraint regardless of what the federal courts eventually decide about preemption. The market that prices whether Kalshi emerges from this litigation cycle with its national footprint intact should be pricing the duration of interim restrictions, not just the probability of ultimate federal vindication.
The standard for dissolving a preliminary injunction is that the enjoined party demonstrate a change in circumstances or show that the original finding was in error. Winning on preemption at the federal level would satisfy neither prong in a Washington state court without an intervening appellate ruling that binds Judge McHale.
