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New York Sues Prediction Market Firm Kalshi, Alleging β€˜Illegal Gambling Operation’

πŸ“° The City NYC πŸ• July 31, 2026 at 10:47 AM
State Attorney General Letitia James speaks at the Brooklyn Democratic Gala in Red Hook,

This story was produced as part of a partnership between The City Reporter andΒ NOTUS, a publication from the nonprofit, nonpartisan Allbritton Journalism Institute.

New York Attorney General Letitia James sued prediction market Kalshi in state court on Friday, alleging that the company runs an β€œillegal gambling operation” without proper state licenses.

James’ lawsuit comes amid disputes between an independent federal agency and state governments over who has jurisdiction to regulate the rapidly growing prediction market industry, which includes companies like Kalshi and Polymarket. The Commodity Futures Trading Commission, which regulates prediction marketplaces, has argued that the companies are β€œdesignated contracted markets” that offer event contracts, otherwise known as swaps, that offer odds on yes-no scenarios.

State governments have rebutted that argument, contending that the sport contracts offered on prediction markets mirror sports gambling that falls under states’ regulatory purview. Forty-four state attorneys general, including James, signed a letter to the CFTC on Monday asking that the agency β€œstart afresh with its rulemaking and clarify that sports bets and gambling cannot be traded on [designated contract markets], but are instead subject to state law.”

James used a similar stance in her lawsuit against Kalshi, accusing the company of circumventing state regulations on sports betting β€œby offering what is quintessentially wagering under the guise of β€˜event contracts’ on a β€˜prediction market.’” The lawsuit also accused Kalshi of allowing individuals under the age of 21 to wager on the platform.

James’ lawsuit asked a judge to bar Kalshi from operating within the state by offering β€œcontracts relating to sports, culture, elections, and other events” without required licenses. It also asked for Kalshi to pay restitution to consumers, pay a fine equal to three times the gains the company made and forfeit any alleged illegal profits.

β€œNew York’s gambling laws protect children from underage betting and help combat gambling addiction,” James said in a statement announcing the lawsuit. β€œNo matter what they call themselves, prediction markets like Kalshi are gambling platforms, plain and simple. By ignoring our laws, Kalshi is running an illegal operation and harming New Yorkers in the process.”

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The CFTC preemptively requested a temporary restraining order in federal court ahead of James’ lawsuit to stop the state from pursuing civil or criminal enforcement actions against Kalshi while litigation continues.

Kalshi and New York were engaged in β€œongoing negotiations” on a comprehensive tax proposal prior to the lawsuit, a source familiar with Kalshi’s negotiations told NOTUS. The source said New York did not respond to the proposal β€œin substance” and then β€œabandoned” the idea.

James’ office did not immediately respond to a request for comment about the tax negotiations.

β€œIt’s sad to see this type of political theater from the leadership in our own state,” Elisabeth Diana, Kalshi’s head of communications, said in a statement. β€œStates can’t just shut down a federally licensed exchange. This would also hurt New Yorkers, who would be driven offshore. We love New York, we love New Yorkers, and New Yorkers love our product.”

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