New York Attorney General Letitia James and Governor Kathy Hochul have filed a lawsuit against Polymarket, accusing the crypto-based prediction market of operating an unlicensed gambling enterprise within the state. The complaint asserts that Polymarket’s markets meet New York’s legal definition of gambling because users stake money on uncertain outcomes they cannot control. Investigators concluded that the platform never obtained a license from the New York State Gaming Commission, thereby avoiding taxes that fund public schools, youth sports programs, and problem gambling treatment.

The legal action highlights a jurisdictional conflict between state gaming laws and federal regulatory frameworks. Polymarket and rival Kalshi contend they are not gambling sites but federally regulated exchanges offering "event contracts," which would place them under the Commodity Futures Trading Commission (CFTC). The CFTC has supported this view, suing nine states in 2026 to assert exclusive nationwide authority over the industry. Additionally, the New York suit alleges Polymarket allows users aged 18 to 20 to participate, violating the state’s requirement that mobile sports bettors be at least 21. The state seeks to bar Polymarket from operating, forfeit illegal gains, repay harmed users, and impose fines equal to three times those gains.