Ninth Circuit Denial Fragments West Coast CEA Challenges as Kalshi Seeks Stay in Washington
The Ninth Circuit rejected a request from three California tribes to align their appeal against Kalshi and Robinhood with the consolidated Nevada prediction market case. At the same time Kalshi filed to stay proceedings in Washington after a federal judge remanded the case back to state court. The moves split West Coast litigation into separate tracks and sharpen the clash between tribal sovereignty claims and CFTC preemption over event contracts.
After eighteen years on bookmaker trading floors I have seen regulatory overlap create exactly this kind of fragmentation. Different panels. Different timelines. Different incentives. The data on the table shows operators now face parallel fights that could produce inconsistent outcomes before any final clarity arrives.
Ninth Circuit Rejects California Tribes’ Panel Request
Three California tribes — Blue Lake Rancheria, Chicken Ranch Rancheria of Me-Wuk Indians, and Picayune Rancheria of the Chukchansi Indians — asked the Ninth Circuit to assign their appeal to the same panel handling the Nevada case. They argued the matters involve substantially overlapping legal questions concerning the regulation of event-based contracts under the Commodity Exchange Act.
The tribes told the court that assignment would promote judicial economy, conserve judicial resources, and facilitate efficient resolution of related legal issues. They also noted the California case raises separate issues involving tribal sovereignty and regulatory authority.
The Ninth Circuit denied the request on May 6. The court cited significant differences between this appeal and North American Derivatives Exchange, Inc. v. State of Nevada. The order was short. The motion to reassign this appeal to the panel that heard argument in that appeal is denied.
The tribes sued Kalshi and Robinhood in July 2025. They alleged the companies are operating illegal sports betting on tribal lands, violating the Indian Gaming Regulatory Act and threatening tribal sovereignty. In November 2025 a federal judge sided with the prediction market operators. The judge ruled that the CEA governs event contracts, not tribal or state law. The judge also ruled that the Unlawful Internet Gambling Enforcement Act governs Kalshi’s online operations instead of the Indian Gaming Regulatory Act.
This denial keeps the tribal sovereignty questions on a separate track. That matters for risk decisions inside trading rooms. Different panels increase the chance of divergent readings on where CFTC authority stops and tribal authority begins.
Kalshi Moves to Pause Washington Case Pending Appeal
Kalshi filed a motion seeking to stay a Washington federal court order that remanded the state’s lawsuit back to state court. The company had removed the complaint to federal court claiming the CFTC has exclusive jurisdiction over event contracts.
On May 5 U.S. District Judge John C. Coughenour rejected the removal arguments. He concluded the case does not belong in federal court because gambling regulation falls within state oversight. Kalshi appealed and is now seeking a stay pending appeal or at minimum an interim stay while it seeks a stay in the Ninth Circuit.
Kalshi warned that allowing state-court proceedings to continue could lead to conflicting federal and state court decisions across jurisdictions. The company cited recent favorable rulings in Arizona and the Third Circuit. It argued parallel proceedings risk creating judicial chaos and warned of a rat’s nest of comity and federalism issues if state proceedings advance while federal appeals remain unresolved.
From an operator perspective this is familiar territory. When removal fails and remand follows the immediate priority is freezing the state track. The language in Kalshi’s filing shows they are playing for time and for consistency with the pro-CFTC precedents already on record.
The Tribal Sovereignty Tension
The California tribes built their case on Indian Gaming Regulatory Act violations and threats to sovereignty. The federal judge’s November 2025 ruling treated event contracts as CEA territory and pushed UIGEA into the online operations slot. That framing sidelines IGRA but does not erase the underlying sovereignty argument the tribes continue to press on appeal.
The Ninth Circuit’s refusal to consolidate highlights the limit of overlap. Even where CEA questions look similar the tribal authority piece introduces distinct regulatory authority questions. Panels may now reach different conclusions on how far CFTC preemption reaches when tribal lands are involved.
Bookmakers and prediction market platforms watch these distinctions closely. A narrow reading of preemption in one circuit and a broad reading in another changes compliance cost, licensing pressure, and product availability on tribal versus non-tribal territory. The fragmentation is not abstract. It shows up in trading limits, geofencing decisions, and reserve calculations.
Risk of Inconsistent Outcomes and Judicial Chaos
Kalshi’s stay motion surfaces the clearest risk. Parallel proceedings increase the chance of conflicting federal and state court decisions. The company used the phrase judicial chaos and pointed to a rat’s nest of comity and federalism issues. Those are not rhetorical flourishes. They describe exactly what happens when one court treats event contracts as commodities and another treats them as gambling under state or tribal rules.
Counterarguments exist. State regulators and tribes can claim that gambling oversight has always been a core state and tribal power. The Washington remand decision followed that logic. Yet the Arizona injunction and Third Circuit victory cited by Kalshi show momentum in the other direction. The split creates uncertainty that operators must price into their risk models today.
After eighteen years inside sportsbook operations the pattern is clear. When federal preemption fights fragment across circuits the practical effect is slower product rollouts, higher legal reserves, and cautious market making. Prediction markets built on event contracts feel this pressure first because their legal thesis rests so heavily on CEA coverage.
The Bottom Line is that the Ninth Circuit’s May 6 denial and Kalshi’s stay motion in Washington have fragmented the West Coast CEA litigation into parallel tracks. Tribal sovereignty claims now sit on one timeline while federal preemption arguments advance on another. Operators should expect continued divergence until higher courts reconcile the overlap. The constructive path forward is tighter coordination between CFTC guidance and state-tribal compact updates so that market participants can price risk with fewer conflicting signals before the next major product cycle.
