Arizona Attorney General Kris Mayes has filed against Kalshi what appears to be the first criminal case in the U.S. against a federally regulated prediction market platform. The State alleges Kalshi is operating an illegal gambling enterprise and facilitating unlawful election wagering by Arizona residents.
The 20‑count criminal complaint, filed in Maricopa County Superior Court, alleges that Kalshi accepted bets from users in Arizona on a range of outcomes, including professional and collegiate sporting events, player performance propositions, and political contests, in violation of state laws against unlicensed gambling and statutory prohibitions on betting on elections. Several counts focus specifically on alleged wagers tied to future election results.
In announcing the charges, Mayes characterized Kalshi’s platform as functionally indistinguishable from an unlicensed sportsbook that extends into prohibited election wagering, notwithstanding the company’s status as a prediction market subject to a federal regulation by the Commodity Futures Trading Commission (CFTC). Arizona asserts that state law does not permit private platforms to use trades in a way that circumvents gambling and election‑integrity statutes. The counts are charged as misdemeanors and carry potential monetary penalties in the tens of thousands of dollars if Kalshi is convicted. The state has framed the action as part of a broader effort to enforce Arizona’s existing gambling framework and to prevent the introduction of election betting into the market.
Kalshi rejects Arizona’s characterization of its activities and, shortly before the criminal case was filed, initiated a federal lawsuit seeking to enjoin the state from enforcing its gambling laws against the platform. The company reports that it operates as a designated contract market under the Commodity Exchange Act and the oversight of the CFTC, and it contends that its event contracts are properly treated as federally regulated derivatives rather than gambling products. Kalshi argues that prediction markets like the one it operates fall within the exclusive province of federal regulation.
The Arizona prosecution places squarely before the courts a set of questions that have been building as prediction markets and other event‑based products continue to grow. Kalshi asserts that the CFTC regulatory structure governs the contracts traded on its platform — whether tied to sports, policy developments, or political outcomes — and that federal law preempts conflicting state gambling rules.
Arizona, by contrast, contends that it maintains authority to restrict or prohibit wagers that fall within traditional state police powers over gambling, consumer protection, and elections, even when those wagers are structured and marketed as financial contracts.
As the criminal case proceeds in state court alongside Kalshi’s federal challenge, regulators and market participants alike will be watching for guidance on how far states may go in applying gambling and election‑related restrictions to federally regulated prediction markets, and how much room companies in this space have to rely on federal derivatives law when designing products, accessing customers across state lines, and assessing enforcement risk.