The company argues federal derivatives law leaves New York no room to police its markets as gambling.
New York sued Polymarket in September. Polymarket has answered by taking the dispute to federal court and asking a judge to shut the state's case down.
The prediction market filed in the Southern District of New York seeking to bar Attorney General Letitia James and the state's Gaming Commission from enforcing New York gambling law against it, first temporarily and then for good. The heart of its argument is preemption. In the company's telling, federal law has "expressly prohibited" state gambling enforcement against exchanges overseen by federal derivatives regulators, and New York's action is "an extraordinary assertion of state power squarely foreclosed by federal law." Neal Kumar, Polymarket's top lawyer, has pledged to contest the state's claims.
What the state is asking for
New York's lawsuit aims to end Polymarket's sports contracts inside the state entirely. It also asks the court to order refunds to customers, force the company to give up profits, impose a penalty equal to triple its gains and levy $100,000 for every instance a contract was offered.
The per-offering penalty is the one to watch. Unlike a multiple of profits, it compounds with the number of markets listed, so a platform that posts many sports contracts every day could face exposure far larger than what it earned from them.
One question, many courtrooms
Stripped down, both sides are arguing about whether federal commodities law displaces state gambling rules for event contracts on a regulated exchange. The same question is being fought by Kalshi, Robinhood and others, and three petitions raising it are before the Supreme Court. A federal ruling in New York would add another data point to a split the justices may eventually have to resolve.
The strategic logic
By moving first in federal court, Polymarket picks a forum where federal preemption arguments are routine and where a win would carry weight beyond one state. The risk is equally broad: a loss would hand other states a template.
What to watch
The briefing schedule on the injunction request, New York's answer to the preemption claim and whether the judge chooses to wait for the Supreme Court before ruling.