New York Attorney General Letitia James filed a lawsuit against Polymarket on Thursday, alleging that the prominent prediction-market platform operates an unlawful gambling enterprise within the state.
The legal action focuses on QCX LLC, doing business as Polymarket US, aiming to halt its New York operations, reclaim allegedly unlawful proceeds, and provide restitution to users.
While the filing might initially resemble standard prediction market litigation, three distinct aspects went largely unnoticed by mainstream headlines.
1. New York Is Targeting Polymarket’s Federally Regulated US Business
This represents a critical distinction.
Polymarket re-entered the United States market in December 2025 via a CFTC-regulated exchange, relying on that federal sanction to justify offering prediction markets in jurisdictions like New York.
New York is mounting a direct challenge to that framework.
State authorities contend that holding a federal license does not automatically permit Polymarket to provide products classified as gambling under New York law without also securing a state gambling permit.
2. New York Wants More Than a Ban
Attorney General James seeks measures that go well beyond simply enjoining Polymarket from doing business.
New York is demanding that Polymarket disgorge profits supposedly generated through illicit conduct, reimburse impacted customers, and pay penalties amounting to triple those profits.
Consequently, fighting the lawsuit could prove considerably more costly for the company than simply exiting the New York market.
3. US Courts Already Disagree on Who Is Right
The implications of the litigation extend far beyond Polymarket, mirroring battles faced by rival prediction market Kalshi across the country.
In April, a federal appeals court determined that New Jersey lacked the authority to regulate Kalshi’s federally supervised prediction markets in the manner the state attempted.
Subsequently, in August, a separate federal appeals court arrived at a contrasting conclusion regarding a Nevada dispute, ruling that federal law probably did not prevent Nevada from enforcing its gambling regulations on Kalshi’s sports contracts.
This judicial divergence leaves a fundamental question open: does federal oversight supersede state gambling statutes?
Letitia James Has Been Here Before
James possesses an extensive background in cryptocurrency enforcement.
Her department extracted upwards of $22 million from KuCoin in 2023 following a lawsuit alleging the platform operated unlawfully in New York—a case that gained prominence because James asserted Ethereum could be classified as a security.
In 2024, her office finalized a settlement reaching up to $2 billion with Genesis, marking the largest cryptocurrency settlement in New York state history.
Lately, her focus has shifted toward prediction markets, prompting lawsuits against Coinbase, Gemini, and Kalshi prior to Thursday’s action against Polymarket.
Polymarket now stands as the newest participant drawn into a broader conflict concerning jurisdictional authority over American prediction markets.