New York Attorney General Letitia James initiated a lawsuit against Polymarket on Thursday, alleging that the major prediction market is operating an unlawful gambling enterprise within the state.
The legal action names QCX LLC, doing business as Polymarket US, aiming to halt its operations in New York, disgorge purportedly unlawful profits, and provide restitution to users.
While the lawsuit initially resembles other prediction market litigation, it contains three standout details that largely went unnoticed in mainstream coverage.
1. New York Is Targeting Polymarket’s Federally Regulated US Business
This distinction holds significant weight.
Polymarket re-entered the United States market in December 2025 via its exchange regulated by the Commodity Futures Trading Commission (CFTC). The company currently relies on that federal authorization as its legal foundation to provide prediction markets across various states, including New York.
New York is challenging this framework directly.
The state maintains that holding a federal license does not automatically grant Polymarket the authority to offer products categorized by New York as gambling without also acquiring a state-level gambling permit.
2. New York Wants More Than a Ban
Attorney General James’s demands extend well beyond simply seeking an injunction to stop Polymarket from functioning in the region. The financial penalties requested are far-reaching.
New York is demanding that Polymarket forfeit revenue allegedly generated through unlawful practices, reimburse impacted consumers, and pay monetary penalties amounting to three times those ill-gotten gains.
These financial requirements could render this case substantially costlier than merely exiting the New York marketplace.
3. US Courts Already Disagree on Who Is Right
The scope of this legal battle reaches far beyond Polymarket alone. Another prediction platform, Kalshi, has been contesting comparable legal challenges nationwide.
During April, a federal appeals court determined that New Jersey lacked the authority to regulate Kalshi’s federally overseen prediction markets in the manner the state attempted.
Subsequently in August, a separate federal appeals court arrived at a contradictory decision regarding a Nevada dispute, ruling that federal statutes would likely not prevent Nevada from enforcing its gambling regulations on Kalshi’s sports-related contracts.
This judicial split leaves a critical question unanswered: does federal oversight supersede state gambling legislation?
Letitia James Has Been Here Before
James possesses an extensive history of enforcement actions within the cryptocurrency sector.
Her department extracted over $22 million from KuCoin back in 2023 following a lawsuit claiming the exchange functioned unlawfully within New York. That initial litigation garnered widespread attention because James asserted that Ethereum could qualify as a security.
In 2024, her office achieved a settlement reaching up to $2 billion with Genesis, marking the largest cryptocurrency-related settlement in the history of New York state.
In more recent times, her focus has shifted toward prediction markets, resulting in lawsuits against Coinbase, Gemini, and Kalshi prior to Thursday’s action against Polymarket.
Polymarket now stands as the newest entity entangled in a broader conflict over regulatory jurisdiction for prediction markets throughout the United States.
Frequently Asked Questions
Who filed the lawsuit against Polymarket?
New York Attorney General Letitia James filed the lawsuit against Polymarket (operating as QCX LLC or Polymarket US) on Thursday.
What does New York want from Polymarket in the lawsuit?
New York wants to halt Polymarket’s operations in the state, recover allegedly illegal profits, compensate affected users, and collect fines equal to three times the illicit gains.
Does Polymarket have federal approval?
Yes, Polymarket returned to the US in December 2025 via a CFTC-regulated exchange, using that federal approval to base its operations.
How does this case connect to Kalshi?
Kalshi has faced similar state-level legal challenges across the country, resulting in conflicting federal appeals court rulings regarding whether federal regulation overrides state gambling laws.
