Kalshi continues legal battle as states challenge prediction markets

Kalshi fights on in Washington as states pile pressure on prediction markets

Nick Brown, the Washington state Attorney General, framed it plainly enough: Kalshi had gotten rich promoting wagers on sports, elections, natural disasters, and the Iran War, and now it was banned from doing so in his state. That was last week. This week, Kalshi sent its Washington customers an email that read, in its opening line, like a political manifesto: "The Washington state government has blocked your right to trade freely on Kalshi."

The email was not accidental phrasing. Kalshi's legal team had spotted something worth pressing on. Six days after a Washington court ordered the halt, state authorities told Crypto.com they would not enforce the same law against its identical event contracts until higher court appeals resolved. Kalshi filed a motion Thursday making the obvious argument: the contracts deemed intolerable from one federally regulated exchange were now freely available from another, with the state's blessing.

This is the cleanest preemption argument the industry has produced in months. Not a theoretical claim about federal supremacy — a concrete, dateable instance of selective enforcement in the same jurisdiction, against the same product category, applied differently to two companies sitting under the same CFTC umbrella. Courts find it much harder to dismiss that kind of asymmetry than to dismiss an abstract federalism principle.

The wider map is less clean. Kalshi customers in Michigan and Nevada are also blocked. Live legal disputes are running in Massachusetts, Minnesota, Ohio, Maryland, Utah, Arizona, and New York, where the financial exposure is large enough to reframe what a loss would cost the industry. The CFTC has been running interference — hosting roundtables, advancing rule proposals, positioning itself as the industry's federal home — but rulemaking takes time that state courts do not extend on request.

I have watched regulatory fights run in multiple jurisdictions simultaneously before, and the dynamic that usually decides them is not legal argument — it's sequencing. Which court rules first, at which level, on which question. The Washington motion is interesting precisely because it forces a ruling on the selective enforcement point before the broader preemption appeals have cleared. If the court grants reconsideration, Kalshi gets back online in Washington and hands its lawyers a fact pattern to carry into every other state docket. If the court declines, the asymmetry between Kalshi and Crypto.com sits on the record anyway, available for the next court up.

The consensus read on this week was that Kalshi is on the defensive. I think that understates what the Thursday filing was actually doing. A company purely playing defence does not file a motion designed to make a state court document its own double standard in writing. That motion is infrastructure for the federal preemption cases, built while the Washington injunction is still in force.

The states that have moved against Kalshi are not wrong that their gambling laws cover the product. Their problem is that the CFTC disagrees with them about which legal framework governs, and a federally chartered exchange operating under explicit CFTC oversight is a difficult defendant to permanently shut down at the state level without a circuit court ruling that squarely contradicts the federal regulator. That ruling does not exist yet. Until it does, the legal position of any state injunction remains more fragile than the injunction's existence suggests.