California tribal ruling gives states a new path to restrict Kalshi

A three-judge panel of the Ninth Circuit handed the Blue Lake Rancheria and the Chicken Ranch Rancheria of the Me-Wuk Indians a ruling last week that does something no previous court had managed: it placed Kalshi's sports-event contracts inside the legal framework of the Indian Gaming Regulatory Act. Judge Margaret McKeown wrote that the lower court had erred in treating those contracts as federally regulated derivatives. They were, the panel held, an act of placing a bet or wager. That one sentence is worth sitting with.

Kalshi has built its entire legal defense on the Commodity Exchange Act. The argument is clean: the CFTC regulates event contracts, federal law preempts state gambling rules, and no state regulator has authority to shut down a federally designated exchange. That argument worked at the district level. The district court found that the CEA and the Unlawful Internet Gambling Enforcement Act, not IGRA, governed what Kalshi was selling. The tribes appeared to be losing.

The appellate panel reversed on the injunction question and sent the case back down, finding the tribes were likely to succeed on their IGRA claims as applied to tribal lands. The court did not order Kalshi to stop operating in California. What it did was establish that the CEA preemption argument has a ceiling — and that ceiling is tribal sovereignty under IGRA.

The distinction matters beyond California. Gaming attorney Daniel Wallach, who has tracked these proceedings closely, described the opinion as a blueprint. That word is precise. Courts in Connecticut, Texas, and Ohio have been searching for a legal theory that can survive Kalshi's federal shield. The Ninth Circuit just handed them one — not a complete victory, but a workable framework. If tribal gaming rights can override CEA preemption on tribal land, state regulators will ask whether analogous sovereignty arguments apply to their own jurisdictions. They probably do not map directly. But the principle that federal exchange status does not automatically extinguish all other legal claims is now in a circuit opinion, and that opinion will be cited.

I would note my own tendency here: I look for the downside case. I am adjusting for that. The ruling is genuinely limited. It covers tribal land, a specific statutory framework, and resulted in a remand rather than an injunction. Kalshi is still operating in California. The Picayune Rancheria dropped out of the case last August, which suggests even the tribes did not see this as a certain win.

But the market is pricing this as a contained event, and I don't think that holds. The CEA preemption argument was load-bearing for Kalshi's national expansion strategy. One appellate panel has now found it insufficient under a specific but replicable set of facts. Texas is watching this case. Connecticut is watching this case. Every state attorney general who has been told Kalshi is untouchable because it is federally regulated now has a published opinion that says federal regulation is not the end of the analysis.