Kalshi Injunction: Nevada Halts Prediction Market Over Gaming Laws

Sandro Brasher

Uncategorized

March 21, 2026

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Nevada District Court Judge Jason D. Woodbury issued a temporary restraining order against Kalshi, the federally regulated prediction market platform, blocking its operations in Nevada pending a formal hearing scheduled for April 2025. The order hinges on a single legal question: does Kalshi’s commission-based revenue model constitute a “percentage game” under the Nevada Gaming Control Act? The answer could redefine how event contracts operate across every U.S. state.

Nevada Judge Issues Temporary Order Blocking Kalshi Operations in 2025

The Specific Legal Trigger: What Is a “Percentage Game”?

Judge Woodbury’s order did not broadly challenge Kalshi’s business model. It targeted one precise mechanism: the platform’s commission structure. Under the Nevada Gaming Control Act, a “percentage game” is defined as any game in which the operator takes a cut of the money wagered or exchanged between participants. Nevada regulators argued that Kalshi’s fee model fits squarely within that definition, making it subject to state gambling law regardless of any federal authorization.

Kalshi charges users a fee on each contract traded, typically expressed as a percentage of the contract value. That structure, regulators contend, is functionally identical to how a casino takes a rake from a poker pot. The legal distinction between a financial instrument fee and a gaming rake is now the central question before the Nevada court. If the court sides with the state, every prediction market platform charging percentage-based fees could face similar exposure in Nevada and potentially other states with analogous statutes.

The Nevada Gaming Control Board, which oversees all gaming activity in the state, initiated the action after determining that Kalshi had not obtained the required state license to operate. The board’s position is that federal CFTC registration does not automatically exempt a platform from state-level gaming compliance requirements. That argument sets up a direct collision between two regulatory frameworks that were never designed to interact.

What the Temporary Order Actually Requires

A temporary restraining order is not a final judgment. It is an emergency measure a court issues when a plaintiff demonstrates a likelihood of success on the merits and a risk of irreparable harm if operations continue unchecked. Judge Woodbury’s order means Kalshi must pause Nevada-facing operations until the April hearing produces a more definitive ruling. Nevada residents who had active positions on the platform at the time of the order faced immediate uncertainty about access to their accounts and open contracts.

The April hearing will determine whether the temporary order converts into a preliminary injunction, which would remain in force throughout the full litigation. That process could take months or years to resolve, particularly if Kalshi appeals. The company has strong financial and legal incentives to fight aggressively: Nevada is one of the most symbolically significant states in the U.S. gambling regulatory ecosystem, and a loss here carries outsized reputational weight [1].

Kalshi’s Federal Shield Argument and Its Limits in Nevada

The CFTC Registration Defense

Kalshi’s core legal defense rests on federal preemption. The company received designation as a Designated Contract Market (DCM) from the Commodity Futures Trading Commission, making it one of only a handful of platforms legally authorized to offer event contracts to U.S. retail participants. Kalshi argues that the Commodity Exchange Act, the federal statute governing CFTC-regulated markets, preempts state laws that would otherwise restrict or prohibit its operations. This is not a novel legal theory: federal preemption is a well-established doctrine under the Supremacy Clause of the U.S. Constitution.

The CFTC itself has historically taken the position that event contracts on its regulated exchanges are financial instruments, not gambling products. In 2023, the CFTC approved Kalshi’s political event contracts after a prolonged legal battle, signaling federal support for the platform’s legitimacy. That approval gave Kalshi significant legal credibility at the federal level, but it did not resolve the question of state-level compliance. Federal preemption arguments succeed when Congress has explicitly or implicitly occupied a regulatory field, and Nevada will argue that gambling regulation is a domain states have historically controlled [2].

Why State Gambling Laws Are Harder to Preempt Than They Look

Courts have generally been reluctant to find federal preemption of state gambling laws unless Congress has spoken with unusual clarity. The Unlawful Internet Gambling Enforcement Act of 2006, for example, explicitly carved out CFTC-regulated contracts from its prohibitions, but that carve-out applies to federal law, not state statutes. Nevada’s Gaming Control Act is a state law, and the question of whether the Commodity Exchange Act preempts it has never been definitively resolved by a federal appellate court.

Legal analysts following the case note that the outcome may depend on how narrowly the court defines the scope of CFTC regulation. If the court finds that the CFTC’s authority covers the specific activity at issue, preemption becomes more plausible. If the court finds that Nevada is regulating a distinct activity, namely the act of taking a percentage of participant funds, the state’s position strengthens considerably. The April hearing will force both sides to brief this question in detail [3].

Event Contracts Regulation: A Fragmented U.S. Market in 2025

The U.S. prediction market sector has operated in regulatory ambiguity for over two decades. The CFTC’s 2023 approval of Kalshi’s political event contracts was widely seen as a turning point, opening the door for mainstream retail participation in event derivatives for the first time. Kalshi reported processing over $1 billion in cumulative contract volume by late 2024, a figure that underscores the commercial stakes of the Nevada dispute.

The Nevada case arrives at a moment when prediction markets are attracting serious institutional attention. The 2024 U.S. presidential election cycle drove record trading volumes on platforms like Kalshi and Polymarket, with some contracts generating millions of dollars in daily volume. That visibility has drawn scrutiny from state regulators who were largely indifferent to the sector when volumes were small. Nevada, home to the most mature and heavily regulated gambling market in the country, was always likely to be the first state to act.

The broader regulatory question is whether event contracts are financial instruments, gambling products, or something entirely new that existing law does not cleanly address. The CFTC treats them as derivatives. State gaming boards treat them as games of chance or skill with monetary stakes. Courts have not yet produced a definitive answer at the appellate level, which means the Nevada case could produce the first significant precedent on this question in the United States.

What This Means for Crypto and Blockchain Finance Markets

The Kalshi injunction carries direct implications for the blockchain-based prediction market sector. Platforms like Polymarket operate on decentralized infrastructure, using smart contracts on Ethereum and other networks to settle event outcomes without a central intermediary. The legal theory Nevada applied to Kalshi, that a percentage-based fee structure triggers gaming law, applies equally to any platform that takes a cut of contract value, whether that platform runs on a centralized server or a public blockchain.

Decentralized prediction markets have historically argued that their architecture removes them from the reach of traditional financial and gaming regulators because no single entity controls the platform or holds user funds. The Nevada action does not directly test that argument, but it signals that state regulators are willing to pursue aggressive theories of jurisdiction over platforms that generate revenue from event-based trading. Any blockchain project offering prediction or event derivative products to U.S. users should treat the April hearing as a material regulatory development worth monitoring closely.

The CFTC preemption question also matters for tokenized derivatives and on-chain event contracts. If federal CFTC registration does not shield a centralized, fully compliant platform like Kalshi from state gaming law, it provides even less protection for decentralized protocols that lack formal CFTC authorization. The outcome of the Nevada case will inform how blockchain finance projects structure their fee models and jurisdictional exposure for years to come.

Key Takeaways

• Nevada Judge Jason D. Woodbury issued a temporary restraining order against Kalshi in early 2025, halting the platform’s operations in the state pending an April hearing.
• The order centers on whether Kalshi’s commission structure qualifies as a “percentage game” under the Nevada Gaming Control Act, which would require state gambling licensure.
• Kalshi holds a CFTC Designated Contract Market license and argues that federal law under the Commodity Exchange Act preempts Nevada’s gaming statutes.
• The April 2025 hearing will determine whether the temporary order converts into a preliminary injunction that could remain in force throughout full litigation.
• Kalshi reported over $1 billion in cumulative contract volume by late 2024, making the Nevada dispute a high-stakes commercial and legal battle.
• The case sets a potential precedent affecting all U.S. event contract platforms, including blockchain-based prediction markets that charge percentage fees on trades.
• No U.S. federal appellate court has definitively resolved whether CFTC regulation preempts state gaming laws for event contract platforms, leaving the legal question open.

Frequently Asked Questions

The Bottom Line

The Nevada restraining order against Kalshi is not simply a local regulatory dispute. It is the first serious legal test of whether a CFTC-regulated event contract platform can operate freely across U.S. states without obtaining individual state gambling licenses. Judge Woodbury’s April hearing will produce the most substantive judicial analysis of CFTC preemption in the prediction market context that U.S. courts have yet generated.

Kalshi has the resources and the legal standing to fight this case to the appellate level if necessary. The company’s CFTC designation gives it a credible federal preemption argument, but federal preemption of state gambling law is genuinely difficult to establish without explicit congressional language. The Nevada Gaming Control Board is not overreaching: it is applying a statute that the state legislature wrote and that Nevada courts have enforced for decades.

What changes after April 2025 is the degree of certainty every event contract platform, centralized or decentralized, can have about its state-level legal exposure. A ruling for Nevada would trigger a wave of similar actions across the country. A ruling for Kalshi would establish a federal shield that could accelerate the growth of the entire prediction market sector. Either way, the event derivatives market will not look the same on the other side of this hearing.

Sources

1. Casino.org – Coverage of Nevada Gaming Control Board actions and state gambling law enforcement
2. Covers.com – Analysis of the Kalshi Nevada injunction and federal preemption arguments
3. Gambling911.com – Reporting on the April 2025 hearing schedule and regulatory background