New York Attorney General Letitia James has initiated legal action against prediction markets platform Polymarket, accusing the company of operating an illegal gambling business. The lawsuit, filed on Thursday, specifically targets contracts related to sporting events offered through the platform's mobile app, which launched in December 2025. State officials allege that these offerings violate New York’s strict gambling regulations and cite the company’s advertising practices directed at New Yorkers as part of the complaint. The filing indicates that authorities may seek to block the platform from accessing residents within the state.
This legal move follows a pattern of similar actions by New York officials, including a July lawsuit against Kalshi and April litigation involving platforms operated by Coinbase and Gemini. The case underscores growing tensions between US state authorities and federal regulators regarding jurisdiction over prediction markets. While Michael Selig, Chair of the US Commodity Futures Trading Commission, asserts that his agency holds exclusive jurisdiction, states continue to enforce local laws. Additionally, New Jersey recently petitioned the US Supreme Court to clarify regulatory oversight in its own dispute with Kalshi, though the court has not yet decided whether to hear the arguments.
The enforcement action against Polymarket signals a decisive shift in how state regulators are approaching the intersection of decentralized finance and traditional gambling laws. By characterizing event contracts as "quintessentially wagering" despite their technical classification as derivatives, New York is challenging the structural defenses used by prediction market operators. This approach bypasses the complex federal commodity frameworks often cited by platforms like CFTC-regulated entities, instead leveraging well-established state consumer protection and gambling statutes to restrict market access. The potential blocking of the platform for New York residents demonstrates that states are willing to impose operational barriers rather than waiting for federal clarity.
Institutional participants and crypto-native firms must now navigate a fragmented regulatory landscape where state-level enforcement can override federal preemption claims in practice. The pending Supreme Court petition from New Jersey highlights the urgency of this jurisdictional conflict, but until a definitive ruling emerges, companies face significant compliance risks across multiple jurisdictions. The divergence between CFTC assertions of exclusive authority and active state lawsuits creates uncertainty for infrastructure providers and exchanges integrating prediction market features. Firms should anticipate continued aggressive enforcement from state attorneys general who view these products as unlicensed gambling operations, potentially leading to further geographic restrictions or forced product modifications.
