In a recent ruling, a federal judge in Arizona has temporarily barred the state from filing criminal charges against Kalshi, a prediction market provider. The decision comes in response to a motion filed by the Commodity Futures Trading Commission (CFTC). District Judge Michael Liburdi stated that Arizona cannot proceed with an arraignment of Kalshi as scheduled, citing that the CFTC has shown it is likely to succeed in its claim that Arizona's gambling laws are preempted by the Commodity Exchange Act.
The judge's ruling noted that Arizona's actions might violate the Supremacy Clause and granted a temporary restraining order for two weeks, with a pending motion for a preliminary injunction that could extend this order. The CFTC Chair, Michael Selig, expressed appreciation for the judge's decision, stating that Arizona's use of state criminal law against companies complying with federal law sets a dangerous precedent.
The ruling is part of a broader dispute between the CFTC and several states, including Arizona, over the regulation of prediction markets, also known as event contracts. While state courts have often sided with states in such cases, federal courts have yielded mixed results, with some ruling in favor of the CFTC's supervision and others declining to intervene.