Supreme Court faces June 2027 deadline as circuit split widens on Kalshi

The brief that landed before the Supreme Court on October 2 was not filed by a state attorney general or a derivatives lawyer. It came from the people who run gambling enforcement — Ben Haden, president of the International Association of Gaming Regulators, and his counterparts at the North American Gaming Regulators Association. Their argument was spare: the same product, listed on the same federally registered exchange, is currently shielded from state law inside the Third Circuit and exposed to it inside the Sixth and Ninth. That is not a legal tension. It is an operational impossibility.

Daniel Wallach, who has watched this litigation as closely as anyone outside the courtrooms, now projects a Supreme Court decision by June 2027. That is the date to hold.

The circuit arithmetic has shifted noticeably since spring. Kalshi's only federal appellate win remains the Third Circuit's April ruling out of Philadelphia, which found the sports event contracts likely qualify as swaps under the Commodity Exchange Act and that federal law likely preempts New Jersey's sports-wagering statutes. Since then, the Ninth Circuit ruled the other way in August, reinstating Nevada's enforcement authority. The Sixth Circuit did the same in September. Two circuits against one, and the two dissenters are not writing marginal opinions — they are making the structural argument that Congress never handed nationwide authority over sports gambling to commodities regulators when it wrote legislation aimed at financial markets.

Illinois this week produced the strangest data point in this litigation. Judge Martha Pacold blocked Illinois from enforcing its licensing rules against Kalshi, which was a win for the company, and then spent three paragraphs describing the contracts in terms that would be familiar to anyone who has ever placed a bet. She used some form of the word "bet" six times before reaching the end of her third paragraph. The ruling separated on a technical statutory question — whether the "event" in a sports contract is the game or its outcome — and Pacold sided with Kalshi on that reading while explicitly departing from both the Sixth and Ninth Circuit positions. She left the state's new transaction fees unresolved, ordering further briefing.

The practical consequences are moving faster than the doctrine. Michigan now has agreements or court orders halting sports-related event contracts from Kalshi, Robinhood, and Coinbase. The Coinbase position wind-down was set for October 10. None of these agreements resolve the underlying legal question. All parties kept their rights pending whatever the Sixth Circuit or the Supreme Court eventually produces.

I have been wrong about regulatory timelines before, and I am aware that "the Supreme Court will clarify this by mid-2027" has the structure of a forecast I should hold lightly. But the regulators are right that the current configuration is not sustainable. A product cannot be federally protected on one side of a state line and state-regulated on the other indefinitely. The Court will take this or the industry will fragment along circuit boundaries in ways that produce something stranger than anyone is currently pricing.

The IAGR brief is the second amicus filing supporting New Jersey's petition. The first came from the National Council of Legislators from Gaming States. Lawmakers who write the rules and regulators who enforce them have now both told the Court the same thing. That is not lobbying. That is the administrative state signalling that it has run out of room to wait.