Meta description: New York sued Kalshi over sports event contracts, adding to Maryland, Massachusetts and Tennessee fights over CFTC preemption.
Tags: Kalshi, CFTC, New York, Maryland, Massachusetts, Polymarket US
Market platform: Kalshi
Category: Regulation
New York sued KalshiEX LLC on July 31, 2026, alleging the exchange is running an illegal gambling operation through sports event contracts. The complaint adds a major state enforcement action to an unresolved national fight over whether CFTC-regulated prediction markets can offer products that state regulators treat as sports wagering.
What did New York allege against Kalshi?
New York Attorney General Letitia James and Governor Kathy Hochul said the state filed suit against Kalshi for offering sports, culture and election contracts through its website and app without a New York gambling license. In the July 31 announcement, the attorney general’s office said it is seeking an order stopping Kalshi from operating as an unlicensed gambling business, plus fines, forfeiture of illegal gains and restitution to users.
The complaint puts New York on the same side as several state gambling regulators that say sports event contracts are sports bets when they let retail users put money on game outcomes, spreads, totals or player performance. Kalshi’s core defense in those disputes has been federal preemption: the company operates a CFTC-regulated designated contract market, and argues state gambling laws cannot block contracts listed through that federal framework.
New York’s lawsuit is significant because it comes after earlier state-by-state clashes had already produced conflicting rulings. Courts have not settled a single national rule for sports event contracts. Instead, the litigation has produced a patchwork of preliminary orders, appeals and state enforcement efforts that leave the industry’s legal perimeter unsettled.
How did Maryland frame the same sports-contract dispute?
Maryland’s dispute with Kalshi began with a state regulator, not Baltimore. According to the federal docket in KalshiEX LLC v. Martin, the Maryland Lottery and Gaming Control Commission sent Kalshi a cease-and-desist letter on April 7, 2025. The letter directed Kalshi to stop offering Maryland users event contracts tied to sporting league play or sporting events.
Kalshi sued in the U.S. District Court for the District of Maryland on April 21, 2025, seeking declaratory and injunctive relief against the Maryland Lottery and Gaming Control Agency, the commission and state officials. The case was assigned docket number 1:25-cv-01283.
Judge Adam B. Abelson denied Kalshi’s motion for a preliminary injunction on August 1, 2025. In the memorandum opinion, the court said Kalshi had not shown it was likely to succeed on its claim that the Commodity Exchange Act preempted Maryland sports-betting laws. The opinion emphasized that gambling regulation has historically belonged to state police powers and that Kalshi had not shown Congress clearly meant to strip states of that authority when sports wagers are offered on a designated contract market.
That ruling did not end the national question. It did, however, give state regulators a cited federal district-court decision for the argument that CFTC status alone does not automatically neutralize state sports-wagering laws.
Why are the court rulings split?
The split turns on how courts read the Commodity Exchange Act’s grant of exclusive CFTC jurisdiction over certain derivatives transactions. Kalshi argues its sports event contracts are swaps or event contracts traded on a CFTC-regulated market, so state gambling regulators cannot impose separate licensing bans. State regulators answer that they are not trying to regulate commodity futures generally. They are enforcing gambling laws against products that function like sports wagers inside their borders.
Tennessee shows the other side of the split. In KalshiEX LLC v. Orgel, a federal court in the Middle District of Tennessee found Kalshi likely to succeed on preemption grounds and blocked enforcement by Tennessee sports-wagering officials at the preliminary stage. Tennessee Attorney General Jonathan Skrmetti later said his office filed an appellate brief asking the Sixth Circuit to reverse that order, according to a May 26, 2026 statement.
Massachusetts produced a state-court result favorable to regulators. Attorney General Andrea Joy Campbell said on January 20, 2026, that her office had secured a preliminary injunction blocking Kalshi from accepting online sports wagers and related event contracts from Massachusetts customers until it follows state sports-gaming laws, including licensure by the Massachusetts Gaming Commission, according to the Massachusetts attorney general’s office.
Minnesota adds a legislative variation. Governor Tim Walz signed a July 28, 2026 executive order barring state employees from using nonpublic information on prediction markets. The order followed a federal preliminary injunction blocking Minnesota from implementing a law that the governor’s office said was scheduled to take effect on August 1, 2026 and would have banned prediction markets in the state, according to the governor’s office.
Where does Polymarket fit into the regulatory picture?
Polymarket should not be treated as legally identical in every context. The CFTC lists QCX LLC d/b/a Polymarket US as a designated contract market with a designation date of July 9, 2025. A February 27, 2026 CFTC comment letter from Polymarket US and Polymarket Clearing said Blockratize Inc., doing business as Polymarket, acquired Polymarket US and Polymarket Clearing in 2025, and that Polymarket US lists fully collateralized event contracts cleared through its affiliated derivatives clearing organization.
That distinction matters. CFTC materials refer to QCX LLC doing business as Polymarket US, not every product or historical activity associated with Polymarket’s crypto-based platform. State officials, courts and market participants will need to be precise about which legal entity, trading venue and contract set they are discussing.
Polymarket has also faced a separate market-integrity spotlight outside the U.S. state-gambling fight. Israeli authorities announced in February 2026 that an Israeli reservist and a civilian were indicted for allegedly using classified military information to place wagers on Polymarket tied to military operations, according to The Times of Israel. Later reporting by Ynet said the case involved an Israeli Air Force reservist with the rank of major and bets connected to Operation Rising Lion and later military activity.
That case is not a state licensing action against Polymarket. It illustrates a different regulatory concern: whether liquid event markets tied to military or geopolitical outcomes can attract users trading on sensitive nonpublic information.
What is the next legal milestone?
The next concrete milestone is procedural: New York’s case against Kalshi will test whether the state can obtain court relief while related preemption fights move through other jurisdictions. The Maryland, Massachusetts, Tennessee and Minnesota disputes already show that courts are not treating the CFTC-preemption question as settled at the trial-court level.
For the prediction markets industry, the stakes are practical rather than theoretical. If states can enforce sports-wagering laws against event contracts, exchanges will face state licensing, age limits, responsible-gambling rules, taxes and product restrictions similar to licensed sportsbooks. If Kalshi’s preemption theory prevails broadly, federally regulated event-contract exchanges will have a stronger path to offering sports markets across states without sportsbook licenses.
The immediate watch points are New York’s requested injunction, Tennessee’s appeal and any further federal appellate rulings that squarely address sports event contracts under the Commodity Exchange Act. Until then, the legal status of sports prediction markets remains jurisdiction-specific, with CFTC registration carrying real weight but not yet ending the state-law fight.
