Overview
Four New Mexico tribal plaintiffs, led by the Mescalero Apache Tribe (with the Pueblos of Sandia, Isleta, and Pojoaque), sued Kalshi under the Indian Gaming Regulatory Act (filed May 12, 2026), alleging its sports contracts amount to illegal sports betting on or affecting tribal lands. It is one of three parallel New Mexico tracks (tribal, state-AG, and CFTC); no ruling has issued. (Caption + docket confirmed via CourtListener: Mescalero Apache Tribe v. Kalshi, Inc., D.N.M. No. 1:26-cv-01517, before Judge Strickland.)