New York Sues Polymarket Over Sports Betting as Platforms Clash

New York State Attorney General Letitia James sued prediction market platform Polymarket on Thursday, alleging the company ran an unlicensed gambling operation through its sports-based event contracts. Polymarket responded by filing a federal countersuit, arguing that states lack the authority to regulate federally overseen derivatives markets.

The legal confrontation escalates regulatory scrutiny on prediction markets, arriving just two months after a similar state-level lawsuit targeted rival platform Kalshi. As prediction markets expand beyond political forecasting into sports and pop culture, state regulators are increasingly pushing back against financial instruments that mirror traditional sports wagering.

"Our gambling laws exist to protect New Yorkers, prevent the potential harms of problem gambling, and ensure funding for educational and public benefit programs," New York Attorney General Letitia James said in a statement Thursday.

The State's Allegations Against Polymarket's Domestic Arm

The lawsuit, filed in state court in Manhattan by the New York State Attorney General's office, focuses specifically on Polymarket's domestic operations. State authorities claim that the platform's sports-related event contracts violate New York's strict gambling laws by offering wager-like payouts without state licensing.

Under New York law, commercial sports betting is tightly regulated and restricted to approved operators tied to physical casinos, with tax revenues supporting state educational funds. State regulators argue that decentralized or blockchain-backed event contracts bypass these consumer protections and state tax structures.

Polymarket's Federal Countersuit and Legal Defense

Rather than settling in state court, Polymarket moved swiftly to block the litigation. Later on Thursday, the company sought to transfer the case to the U.S. District Court for the Southern District of New York, while simultaneously filing its own civil suit against James and officials with the New York State Gaming Commission.

Polymarket's legal strategy hinges on federal preemption, asserting that state-level regulators do not have jurisdiction over prediction markets that operate under federal derivatives frameworks overseen by bodies like the Commodity Futures Trading Commission (CFTC).

"We chose to engage with them directly on the substance and address their concerns," said Neal Kumar, Polymarket Chief Legal Officer, in a statement to MS NOW.

Kumar added that "any time the AG’s office wants to swing by, our door is open for a conversation about how we protect consumers and offer fair, transparent and legal markets."

What Is at Stake for Prediction Markets

The outcome of this legal clash could establish a precedent for how event contract platforms operate across the United States. If state attorneys general successfully claim jurisdiction over sports and event derivatives, prediction market providers face a fragmented regulatory environment requiring state-by-state licensing, mirroring the hurdles traditional online sportsbooks navigate.