New Jersey Just Asked the Supreme Court to Shut Down Kalshi Sports Betting — Inside the 36 Billion Dollar Legal Fight

New Jersey’s attorney general has formally asked the US Supreme Court to decide whether prediction market giant Kalshi can offer sports event contracts in every state — a filing that could determine who regulates crypto-adjacent betting platforms for a generation.

By Ana Gonzalez | September 6, 2026

The petition, filed Wednesday by Attorney General Jennifer Davenport‘s office, is the first time either side of the national dispute over sports event contracts has asked the justices to step in. It targets an April ruling by the Third Circuit Court of Appeals, which held 2-1 that the Commodity Exchange Act likely preempts state gambling law for sports-related event contracts traded on a CFTC-licensed exchange like Kalshi.

The Hook: A Circuit Split Made in Legal Limbo

Translation for non-lawyers: two different federal appeals courts have now looked at essentially the same question and reached opposite conclusions. That situation — called a circuit split — is the classic trigger for Supreme Court intervention, because it means the law of the land depends on which state you are standing in.

The conflict hardened on August 28, when the Ninth Circuit ruled unanimously against Kalshi in Nevada’s case. Judge Ryan Nelson, writing for the panel, acknowledged that the broadest reading of the word “swap” under the Commodity Exchange Act might cover Kalshi’s contracts — but said that reading “does not square with the statutory scheme” and “would raise concerns under the major-questions doctrine,” the legal principle that Congress must speak clearly before agencies regulate enormous industries. The ruling affirmed a lower court decision letting Nevada enforce its gaming law against the company.

The Third Circuit, by contrast, found that Kalshi’s contracts likely qualify as swaps under the CEA, handing the CFTC exclusive jurisdiction and shielding the company from New Jersey’s gambling law. Hence the split — and hence New Jersey’s filing.

The Timing Was No Accident

New Jersey had been waiting for exactly this moment. In June, the state asked Justice Samuel Alito for more time to file its petition, arguing that expected rulings from the Fourth or Ninth Circuits, or the Massachusetts Supreme Judicial Court, “would inform both the petition and this Court as to the presence of a split.” The Ninth Circuit delivered that split on August 28. New Jersey filed days later.

“These companies have no right to offer their sports bets without following state law, which is why dozens of states across the ideological spectrum have opposed them,” Davenport said in a statement. “We need the Supreme Court to resolve this issue and recognize that Congress did not silently make the sports-betting industry immune from state law.”

The Core Conflict: Exchange or Sportsbook?

Kalshi’s entire business model rests on a single regulatory claim: it is a federally licensed exchange, like the Chicago Mercantile Exchange, and states cannot tell a national exchange what contracts its members may trade. State regulators see something very different — a sportsbook that bypassed licensing by wrapping bets in the language of commodities.

Kalshi is not conceding anything. “Despite the Ninth Circuit’s opinion, we still believe the CFTC regulations as written do not prohibit sports contracts, and in any event, the CFTC is working to clarify those regulations,” spokesperson Dani Lever said. “We will be seeking further review.”

Notably, the CFTC itself has jumped into the fight on Kalshi’s side. Agency spokesperson Zach Fulton said the Ninth Circuit misread the statute and issued a ruling that has “teed up a circuit split that calls out for resolution by the Supreme Court.” In August, the CFTC went further, invoking emergency authority under the Commodity Exchange Act to keep Kalshi’s exchange open despite New York’s attempt to shut it down in a separate 36 billion USD lawsuit.

More Rulings Are Still Coming

The Supreme Court will not decide in a vacuum, because several more courts are weighing the same issue:

• Fourth Circuit — heard Maryland’s appeal on May 7; no ruling yet
• Sixth Circuit — heard consolidated appeals from Ohio and Tennessee on July 30; no ruling yet
• Second Circuit — weighing Kalshi’s appeal of a New York district court loss, plus a similar Connecticut dispute, before a three-judge panel
• Massachusetts Supreme Judicial Court — a state court that heard arguments in May on an injunction against Kalshi that has been stayed since February

Any of the three pending federal circuits could deepen the split — or narrow it — before the justices decide whether to take New Jersey’s case.

What This Means for You

If you trade on Kalshi, Robinhood, Crypto.com, or any platform adding prediction markets, the practical reality is a patchwork that will not resolve soon. Nevada, Michigan, and Washington currently enforce court orders restricting Kalshi’s activity. New Jersey remains open under the Third Circuit’s ruling. Massachusetts sits in limbo. Even if the Supreme Court takes the case, a ruling would not arrive before its next term — meaning state-by-state compliance is the operating environment for the foreseeable future.

For crypto investors more broadly, the case is bigger than sports. The question of whether federal commodities law preempts state rules cuts to the heart of how crypto assets, event contracts, and tokenized markets will be governed. A broad ruling for Kalshi would strengthen the hand of every CFTC-licensed platform seeking a single national framework. A ruling for the states would preserve the fifty-regulator maze the industry has spent years trying to escape.

The Verdict

New Jersey’s petition is the moment this fight graduated from a collection of regional court battles into a single national question. The Supreme Court now must decide whether to hear it — and with the CFTC itself begging for resolution and a live circuit split on the books, the odds it says yes look better by the week. Bitcoin trades near 78,289 USD as of this writing, a reminder that while the lawyers argue, the market keeps moving either way.

The cryptocurrency market remains highly volatile. This article is for informational purposes only and does not constitute financial advice.