Prediction Markets and Tribal Gaming: Three Paths to a Resolution

When Florida Gov. Ron DeSantis said on Oct. 8 that federal courts and lawmakers need to resolve quickly whether prediction markets can offer trading on sports events, he named two of the three institutions that could actually settle the matter. The third, the Commodity Futures Trading Commission, is already moving. For anyone tracking prediction markets and tribal gaming, the practical question is not whether a resolution will come but which path delivers it first and what each would mean for tribal-state compacts.

The dispute turns on a single legal question. Tribes and states argue that sports-event contracts are gambling, which brings them under state law or, on Indian lands, under the Indian Gaming Regulatory Act and the compacts that implement it. Kalshi and other platforms argue that the contracts are swaps regulated exclusively by the federal government under the Commodity Exchange Act. Because the two positions cannot both be right, each path below ends in a ruling about which body of law controls.

Path one: the Supreme Court

The judicial route is the most advanced. Federal appeals courts have reached conflicting results. A unanimous Ninth Circuit panel sided in September with two California tribes seeking to stop Kalshi from offering sports wagers on their land without authorization, and a separate Ninth Circuit decision on Sept. 1 cleared Nevada to enforce its gambling laws against the company. Those outcomes sit uneasily alongside a Third Circuit ruling, and 145 tribes and tribal organizations have asked the Supreme Court to hear Flaherty v. KalshiEX to resolve the conflict. Our reporting on the amicus effort and on how the Court decides which cases to hear explains the mechanics.

The advantage of this path is finality: a Supreme Court decision on preemption would bind every circuit. The drawbacks are timing and scope. The Court is not obligated to take the case, and if it does, a decision would take months. The ruling might also address preemption of state gambling law generally, leaving open how it applies to tribal lands, where IGRA supplies its own framework and where tribes hold sovereign status that states do not. Litigants on both sides will need to make that distinction clearly.

Path two: federal rulemaking

The CFTC route is faster in principle and less certain in effect. On Oct. 4, reporting indicated that the commission had sent two proposed regulatory changes to the White House for review, which could strengthen its push to regulate prediction markets. Rulemaking could clarify how the commission defines the contracts it oversees, and it could give the agency a formal position on how its authority relates to state and tribal gaming law. See our coverage of the OIRA review of the swap definition and of the tribal consultation roundtable.

The limits are also clear. An agency interpretation does not bind a court on a question of statutory meaning, and a rule that favored platforms could be challenged by states and tribes, while a rule that restricted sports contracts could be challenged by platforms. Tribal organizations have also pressed the point that consultation with tribal governments should precede any rule that touches Indian gaming. Rulemaking can shape the debate, but it is unlikely to end the litigation on its own.

Path three: Congress

Legislation is the only path that can change the underlying statutes rather than interpret them. Bills in the House would, in different ways, address sports-event contracts and gambling. We have tracked the Event Contract Enforcement Act and the Prediction Markets Are Gambling Act, and the fall legislative watchlist places them in the calendar. A clear statutory answer would carry the most authority, because it would settle the question for courts and agencies alike.

Congress is also the slowest and least predictable route. Legislation requires agreement across both chambers and with the White House, and the tribal community itself is not unified, since some tribes have chosen to partner with Kalshi while others litigate against it. A bill that protected compacts and exclusivity would please some tribes and not others, and tribal organizations have said the interests of the many should not be set aside for the choices of a few.

How the paths interact

The three paths are not independent. A rulemaking could affect whether the Supreme Court sees a live controversy, a Supreme Court decision could prompt Congress to act, and congressional attention could influence the commission's choices. For tribes with exclusivity, such as those in Florida, the outcome matters because the guaranteed payments written into compacts depend on the exclusivity staying meaningful. The Florida hub and our look at the Seminole Tribe's new lawsuit against DraftKings show how one state is pursuing relief in its own courts while the federal questions remain open.

For now, the sound planning assumption is that no single institution will deliver an answer before the next sports-betting season. Tribes, states and operators should expect continued litigation, conflicting lower-court decisions, and incremental regulatory signals. The Legal Guide offers the IGRA background needed to follow each development, and the comparison tools help readers see how different markets are positioned if the law shifts.