In a temporary reprieve for prediction market provider Kalshi, a federal judge in Arizona has halted the state's attempt to bring criminal charges, at least for the time being, in response to a motion filed by the Commodity Futures Trading Commission. The ruling, handed down by District Judge Michael Liburdi, prevents Arizona from proceeding with an arraignment of Kalshi that was scheduled for Monday, April 13. This development comes after Arizona announced plans to file 20 criminal charges against Kalshi for allegedly offering betting products that violate state law. The judge's decision was based on the CFTC's argument that it is likely to succeed in its claim that Arizona's gambling laws are preempted by the Commodity Exchange Act.

By granting the temporary restraining order, the judge has effectively blocked Arizona from enforcing its gambling laws against Kalshi for a period of two weeks, pending a further hearing. The CFTC has welcomed the judge's decision, with Chair Michael Selig stating that Arizona's actions set a dangerous precedent and that the court's order sends a clear message that intimidation is not an acceptable way to circumvent federal law.

The case is part of a broader dispute between the CFTC and several states, including Arizona, over the regulation of prediction markets. While state courts have often sided with the states, federal courts have delivered mixed results, with some ruling in favor of the CFTC's position that prediction markets are subject to its supervision.