Developing New Jersey Filed With One Day to Spare, and the Ninth Circuit Made It Count

Editor's note: TrueEdge builds odds tools and earns affiliate commissions from licensed sportsbooks. This desk has argued against criminalising federally licensed exchanges. Weigh that when you read what follows.

New Jersey Attorney General Jennifer Davenport and interim Division of Gaming Enforcement director Mary Jo Flaherty petitioned the Supreme Court for certiorari today. It is the first such petition anyone has filed in the prediction-markets fight.

The instinct is to read that as aggression. It is closer to the opposite. New Jersey's window to seek review of the Third Circuit's April ruling ran out tomorrow, September 3. The state filed on the last practical day, which is what a party does when it is preserving an option rather than seizing a moment.

What changed the value of that option was six days old. On August 28 — five days before New Jersey's deadline — a Ninth Circuit panel ruled 3-0 against Kalshi in the Nevada case, holding that sports event contracts are likely not "swaps" under the Commodity Exchange Act and affirming the dissolution of the injunction that had kept the exchange live in Nevada. The Nevada Gaming Control Board's release that afternoon described the panel as "emphatically rejecting" the preemption theory, and named the statutes the state now considers Kalshi to be violating: NRS 463.160, 463.350, 465.086 and 465.092.

Without August 28, New Jersey's petition is a state complaining that one circuit read a federal statute wrongly. With it, the petition presents a live conflict between two federal appellate courts on identical facts. Those are not the same document. Same brief, same deadline, wildly different odds — and the state got the better version by less than a week.

The question is narrower than the noise

Both camps spent this afternoon describing the case as a referendum on whether sports event contracts are gambling. That is not the question presented, and the gap is where most commentary is going to go wrong.

The petition asks whether the Dodd-Frank Act preempts states from applying their sports-gambling laws to wagers placed inside their borders when the contracts are listed on a CFTC-registered exchange. It is a preemption question that turns on how much exclusivity Congress handed a financial regulator in 2010, and on whether a contract paying out on an NFL game is a swap.

Two courts, two answers. In April, a Third Circuit panel held 2-1 that Kalshi was likely to succeed on preemption and that New Jersey could not enforce against it. In August, the Ninth Circuit went the other way, and its ruling reaches Robinhood and Crypto.com as well as Kalshi. The panel quoted Kalshi's own marketing back at it — the company "advertises itself as 'the first app for legal sports betting in all 50 states'" — which is the kind of line that appears in an opinion when a court has decided the label is doing work the substance cannot support.

So the identical trade, cleared identically, is federally shielded conduct in Trenton and unlicensed gambling in Las Vegas. Nobody defends that as a stable arrangement, including Kalshi.

What New Jersey argues, and who is behind it

The state's theory is federalism wearing statutory clothes. Dodd-Frank answered a financial crisis; it was not a vehicle for federalising sports gambling, and reading it that way collides with the Indian Gaming Regulatory Act and the Wire Act, both of which presuppose that states have something left to regulate. Davenport's version for the press: "Companies like Kalshi claim to offer legal sports betting in all 50 States, but they refuse to follow the gambling laws of any State."

The coalition matters more than the phrasing. New Jersey co-led an amicus brief with 39 other jurisdictions in the Ninth Circuit case. Casino operators and tribal governments across roughly 20 states hold the same position, and for tribes the stakes are structural rather than commercial. Tribal gaming generated $43.9 billion in fiscal 2024, and it exists because IGRA requires state permission, a tribal-state compact approved by the Interior Secretary, and National Indian Gaming Commission oversight. An exchange that reaches the same customer through a phone pays for none of that. Brookings has argued the sector poses an existential threat to that model, and the argument does not depend on liking tribal casinos — it depends on noticing that decades of negotiated exclusivity can be routed around by a self-certification filing.

Kalshi's answer came from spokeswoman Dani Lever: the company "is an open, nationwide financial exchange," it "cannot be regulated by 50 different regulators," and "nothing in New Jersey's filing today changes our view." That is the right answer for a company in Kalshi's position. It is also the argument the Ninth Circuit heard and rejected unanimously last week.

The strongest case that this petition goes nowhere

State it at full strength, because it is good and it comes from someone who has done the job.

Carl Kennedy, a former CFTC lawyer, has pointed out that both appellate decisions came out of preliminary proceedings rather than final judgments. Neither court decided what the law is; each decided who was likely to win on the papers so far. The Supreme Court prefers final judgments, where the question is cleanly presented and cannot dissolve on remand, and interlocutory posture is one of the most common reasons a strong-looking split gets passed over. Add the base rate — the Court takes roughly one paid petition in a hundred — and the honest prior is against a grant.

There is a second reason to wait, and it is stronger than the first. On June 10 the CFTC proposed rewriting Rule 40.11, the mechanism for deciding whether an event contract "involves" gaming and is therefore contrary to the public interest. The comment period closed July 27, and the final rule would take effect 60 days after publication. The proposal does not simply ban or bless sports contracts; it splits them. Contracts on final scores, point spreads and season statistics settled against objective league data are generally permissible under the proposed framework. Contracts on player injuries, officiating decisions, discrete in-game actions and physical altercations are likely prohibited, as are contracts on pre-collegiate sports. A Court aware that the responsible agency is weeks from redrawing the line has an obvious reason to hold.

Both objections are real. Neither is decisive, for one reason: this question does not need a record. Whether a sports event contract is a swap under the CEA is pure statutory interpretation, and no amount of discovery moves it. Meanwhile the conflict is not prospective — it is running in production right now on a nationwide platform whose legality flips at a circuit boundary. And the rulemaking cuts both ways: whichever side loses the final Rule 40.11 will sue, and the preemption question returns with the CFTC's own reading attached. Waiting does not make this go away. It changes who is holding the pen.

The scale, honestly stated

Kalshi raised $1 billion at a $22 billion valuation in May, its sixth round, and turned over $29.2 billion in June alone. Front Office Sports puts sports at 72 percent of the platform's 2026 trading volume; other tallies for narrower windows run higher, and we are not going to pretend they reconcile into one number. What nobody disputes is that sports is the majority of the business, which makes this a sports operation holding an exchange licence rather than an exchange with a sports desk. Everyone in the litigation knows it, which is why the Ninth Circuit reached for the marketing copy.

For scale against the incumbent it is accused of impersonating: Brookings noted Kalshi took more than $2.5 billion on sports event contracts in September 2025 alone, against a combined $14 billion at traditional online sportsbooks that month. Volume and handle are not the same measure and treating them as interchangeable flatters the challenger. The trajectory is still not ambiguous.

What we do not know

Whether the Court will call for the views of the Solicitor General — the single most informative signal available, and one that would add months. Whether Kalshi waives its response or fights the petition, which will tell you more about the company's confidence than any statement has. Whether Nevada files its own petition out of the winning side of the Ninth Circuit case, which would hand the Court a cleaner vehicle. NPR floated argument this fall and a decision by summer 2027; that requires an expedited track nobody has requested.

Our position is unchanged and disclosed: a federally registered exchange operating under a self-certification regime the CFTC has never disapproved should not have its status settled by state prosecutors filing charges while the doctrine is open. New Jersey did the opposite today. It filed a brief in the one court that can end the argument, on the last day it was allowed to, holding a card it had been dealt five days earlier. That is how this is supposed to work.

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