In a recent ruling, a federal judge in Arizona has temporarily blocked the state from filing criminal charges against Kalshi, a prediction market provider. 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, as previously scheduled, citing that the CFTC has shown it is likely to succeed in its claim that Arizona's gambling laws are preempted by federal law. The judge granted a temporary restraining order for two weeks, noting that allowing Arizona to proceed with state action could violate the Supremacy Clause.
The CFTC has argued that prediction markets, also known as event contracts, are subject to federal supervision and that its role preempts state law. This view has seen mixed results in court, with state courts often siding with states and federal courts having different outcomes. The CFTC Chair expressed appreciation for the judge's decision, stating that using state criminal law against companies complying with federal law sets a dangerous precedent.
The case is part of a broader dispute over the regulation of prediction markets, with the CFTC suing Arizona and other states over the issue.