New York Sues Polymarket in Escalating Crackdown on Prediction Markets

New York state filed suit against Polymarket's domestic arm in September 2026, alleging the crypto-powered prediction platform is operating an illegal gambling business. The lawsuit marks another front in Attorney General Letitia James's aggressive campaign against the fast-growing prediction market industry, which allows users to bet on everything from election outcomes to sports results to economic indicators.

The action follows a July 2026 suit against Polymarket's chief rival Kalshi — filed after negotiations between Kalshi and Governor Kathy Hochul's office collapsed — which sought a staggering $36 billion in penalties and disgorgement. New York has also taken aim at crypto giants Coinbase and Gemini Titan, accusing both of violating state gambling laws through their own prediction market products. The pattern signals a coordinated state-level offensive, with New York City Council Speaker Julie Menin separately raising the prospect of a probe into how these companies market themselves to consumers.

Polymarket's chief legal officer Neal Kumar fired back defiantly, characterizing the lawsuit as a recycled copy-paste of prior filings and vowing to fight for users. The company has had a turbulent year regardless: its U.S. app rollout was beset by bugs, personnel turnover, and compliance headaches, and the platform was swamped with fraudulent accounts shortly after launch as it aggressively chased growth during a boom year for sports betting.

At the heart of the legal battle is a fundamental jurisdictional dispute. Prediction market operators argue they fall under federal oversight by the Commodity Futures Trading Commission — a position the Trump administration has actively championed. States counter that these platforms are unlicensed gambling operations that siphon tax revenue away from state-regulated gaming. Conflicting court rulings across the country have left the question unresolved, and legal observers expect the fight to ultimately reach the Supreme Court.