A Federal Appeals Court Just Gave Kalshi Its Biggest Legal Win Yet
Key Facts
- The Third Circuit upheld an injunction preventing New Jersey from enforcing its gambling laws against Kalshi’s sports event contracts while the lawsuit continues.
- The panel said Kalshi is likely to succeed on its argument that the Commodity Exchange Act preempts New Jersey’s conflicting laws.
- The decision is the first federal appellate precedent to favor federal control over these contracts instead of state-by-state gambling enforcement.
- The stakes go well beyond New Jersey, with Arizona, Connecticut and Illinois already part of the wider legal fight over prediction markets.
Appeals Court Blocks New Jersey From Forcing Kalshi Out
A three-judge panel of the U.S. Court of Appeals for the Third Circuit ruled on April 6 that New Jersey cannot enforce its sports betting laws against Kalshi’s sports event contracts while the underlying case proceeds. That leaves in place the lower-court injunction Kalshi won after New Jersey tried to shut the contracts down.
The case grew out of a cease-and-desist letter New Jersey sent after Kalshi began offering sports-related event contracts. The state said those contracts violated New Jersey’s constitution and gambling laws, including its restrictions on betting tied to collegiate sports, and warned that Kalshi could face criminal penalties and fines if it kept operating.
New Jersey treated the contracts like unauthorized sports betting
New Jersey’s position was straightforward: Kalshi was offering sports wagering without a state license. The state argued that however Kalshi described the product, the substance looked like betting on sports outcomes, which New Jersey regulates through its own gaming laws.
That argument is the backbone of the broader state push against Kalshi. It is also the argument several other states have tried to use as prediction markets expand into sports and other high-interest event categories.
The appeals panel said federal law likely overrides that state approach
The Third Circuit framed the issue differently. The court said the key question was not whether New Jersey can regulate sports betting generally, but whether it can apply those laws to contracts traded on a CFTC-licensed designated contract market.
On that narrower question, the panel said Kalshi is likely right: the Commodity Exchange Act gives the CFTC exclusive jurisdiction, which means conflicting state enforcement is preempted.
The court also said Kalshi’s sports-related event contracts fit within the federal statutory definition of swaps. That mattered because once the panel accepted that point, New Jersey’s effort to regulate the contracts under state gambling law ran into the CFTC’s exclusive jurisdiction argument.
The case is not over, but the precedent is now much stronger
This was a preliminary injunction ruling, not a final merits judgment. But that does not make it a minor development. It gives Kalshi something it did not have before: a precedential federal appeals court opinion backing its central legal theory in the sports-contract fight.
That is why this ruling carries weight beyond New Jersey. States can still keep fighting, but they are now doing it with a federal appellate ruling on the other side of the ledger.
Why This Matters For Bettors
This ruling is a major win for sports bettors because it strengthens the legal case that federal law preempts contrary state gambling enforcement.
From a legal standpoint, the importance of this decision is that it cuts at the core of the states’ playbook. The standard state argument has been simple: these contracts look like sports betting, so states can regulate or ban them under gambling law. The Third Circuit gave Kalshi a strong appellate answer to that theory by signaling that, when these products are listed on a CFTC-regulated exchange, federal derivatives law likely controls instead.
That does not end the wider fight, but it does make future state enforcement actions harder to defend in court. This ruling does not merely help Kalshi in New Jersey; it sharpens the preemption argument in every courtroom where the same theory is being tested.
That is why the bettor impact goes well beyond New Jersey. States including Connecticut, Illinois, Massachusetts, Montana, Ohio, and Nevada have all taken action against Kalshi or against prediction-market products more broadly, while Arizona went further and filed criminal charges before a federal judge temporarily halted enforcement. In that environment, an appellate ruling for Kalshi does not just help in one case. It changes the leverage in the national fight over whether prediction markets can survive state-by-state legal attacks at all.
That is especially significant in no-sportsbook states, where prediction markets may offer one of the only viable paths to legal sports-outcome exposure if the federal theory keeps holding up in court.
This ruling is not just a court win for Kalshi. It is one of the clearest signs yet that the legal balance in the fight over sports-event markets may be shifting in bettors’ favor.
What Happens Next
New Jersey can seek further review - and the underlying case is still alive. But the immediate result is clear: Kalshi keeps operating under the protection of an injunction, and it now has appellate support for its argument that federal law blocks New Jersey’s enforcement effort.
The bigger next step is what happens in the other state fights.
The CFTC has already made clear that it views these cases as a direct challenge to its “exclusive regulatory authority,” and the agency is now actively suing states over that issue. If another federal appeals court agrees with the Third Circuit, Kalshi’s position gets stronger nationally. If another circuit breaks the other way, the path toward Supreme Court review becomes much more real. That last point is an inference based on how circuit splits typically develop.
