In a recent ruling, a federal judge in Arizona has granted a temporary reprieve to prediction market provider Kalshi, blocking the state of Arizona from pursuing criminal charges. This decision comes in response to a motion filed by the Commodity Futures Trading Commission. District Judge Michael Liburdi ruled that Arizona cannot proceed with an arraignment of Kalshi, which was scheduled for April 13, after the state announced plans to file 20 criminal charges against the company for allegedly violating Arizona law with its betting products.

The judge's decision was based on the likelihood of the CFTC succeeding in its claim that Arizona's gambling laws are preempted by federal law. The ruling stated that proceeding with the state action could violate the Supremacy Clause, leading to a temporary restraining order for two weeks. A pending motion for a preliminary injunction may extend this order. The CFTC Chair, Michael Selig, welcomed the judge's decision, stating that using state criminal law against companies complying with federal law sets a dangerous precedent.

The CFTC has argued that prediction markets are subject to its supervision, and its role preempts state law. The case has seen mixed results in court, with state courts often siding with states, while federal courts have had differing outcomes. The Ninth Circuit Court of Appeals will hold a hearing on a consolidated case next week, allowing various providers to present their arguments.