Overview
The third recipient of Missouri’s September cease-and-desist letters to sue, after Novig and Crypto.com’s exchange. Kalshi’s letter demanded that it stop offering sports contracts in Missouri, or get a Gaming Commission license, pay the state’s taxes and fees and stop serving people under 21. According to the complaint, the Attorney General’s office extended Kalshi’s deadline to October 30, while saying Kalshi could not avoid enforcement after that, and on October 27, 2026 Missouri’s Solicitor General told Kalshi the State could not agree to withhold enforcement. Kalshi sued the same day.
It pleads one count, preemption under the Supremacy Clause, and asks for a declaration that Missouri’s gambling and sports-wagering laws, its merchandising-practices law and the Gaming Commission’s rules are preempted as applied to its exchange, plus a temporary restraining order and preliminary and permanent injunctions. It argues that a license is no real option, because the Commission can deny one on suitability grounds, and that stopping would put it in tension with the CFTC’s impartial-access rule. On November 5 Missouri moved to consolidate Novig’s earlier suit in the same court with this one. The case sits in the Eighth Circuit, where Kalshi’s Iowa appeal is pending. (Caption, court, docket and filing date read from the file-stamped complaint; judge and later entries from the docket.)