New York sued prediction market Polymarket on September 24, 2026, calling it an unlicensed gambling operation and asking a judge to block it in the state, with fines and restitution to users. Governor Kathy Hochul said the platform put New Yorkers at risk, while Polymarket's chief legal officer said it will fight for its users and is staying in New York; the state has similarly sued Kalshi, Coinbase and Gemini, and the platforms argue federal regulators, not states, govern them.