Washington State Attorney General

The profile

The Washington State Attorney General is Nick Brown, and the action against KalshiEX is brought by the office's Consumer Protection Division under RCW 19.86.080, RCW 19.86.140 and RCW 43.10.030. Three statutes are in play together: the Consumer Protection Act at RCW 19.86, which reaches unfair or deceptive acts in trade or commerce affecting the public interest; the Gambling Act at RCW 9.46, which the Legislature amended in 2006 to ban internet gambling and in 2020 to permit sports wagering only on tribal lands under compact; and the Recovery of Money Lost at Gambling Act at RCW 4.24.070, which lets losses be recovered. Washington has restricted gambling since statehood in 1889, when its constitution prohibited gambling on state lands. The office's case rests in part on the Washington State Gambling Commission's notice of 9 December 2025 that offering event-based contracts, or participating in these markets, is not authorised in Washington State, and on Kalshi's advertising to Washington consumers, including a spot in which one person tells another they have found a way to bet on the NFL even though they live in Washington. The case is State of Washington v. KalshiEX, LLC, King County Superior Court number 26-2-10264-3 SEA, before Judge John F. McHale.