Federal Judge Halts Arizona Criminal Case Against Kalshi Prediction Market Through April 24
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Temporary Restraining Order Blocks Prosecution as Federal Government Asserts Federal Jurisdiction
A federal judge in Phoenix has temporarily blocked Arizona Attorney General Kris Mayes' criminal case against the prediction market platform Kalshi, citing federal jurisdiction over the company. The order, granted on April 10, halts the prosecution through April 24 while the federal government asserts that the Commodity Futures Trading Commission regulates prediction markets.
The Latest Development
U.S. District Court Judge Michael Liburdi granted a temporary restraining order sought by the U.S. Department of Justice and the Commodity Futures Trading Commission against the state of Arizona. The order specifically halts the criminal case brought by Attorney General Kris Mayes' office.
The judge's decision came during a nearly two-hour hearing in federal court where lawyers presented competing arguments about state versus federal authority over prediction markets.
During the hearing, lawyers for the federal government argued that Arizona was "attempting to invade federal sovereignty", while the attorney for Arizona argued "the CFTC does not have an interest" in Arizona and its regulation of gambling or sportsbooks.
Judge Liburdi sided with the federal government and the CFTC, ruling that the federal regulator showed sufficient jurisdiction over Kalshi. The judge also determined that the CFTC "has clearly shown that it will suffer irreparable harm absent an injunction."
What Kalshi Is Facing
Attorney General Kris Mayes filed the first criminal case in the nation against a prediction market platform on March 17. The charges include 20 misdemeanor counts of illegal gambling.
Arizona prosecutors allege that Kalshi operates an unlicensed wagering business and facilitates illegal betting on elections. The platform allows customers to buy and sell contracts tied to the probable outcome of events, including political outcomes, college sports, and individual player performance.
Kalshi maintains its product is different from traditional gambling because customers engage in "swaps" between one another instead of betting against the "house." The company argues it operates a financial marketplace rather than a gambling platform.
Federal Jurisdiction at Issue
The core legal battle centers on whether state gambling laws apply to prediction markets. Kalshi argues it is exclusively governed by federal law through the Commodity Futures Trading Commission, which regulates futures and options contracts.
The CFTC chair, Mike Selig, welcomed the ruling in a statement.
Arizona's decision to weaponize state criminal law against companies that comply with federal law sets a dangerous precedent. I welcome the Court's order today that sends a clear message: these cases raise important issues that must be resolved before states seek to enforce state...
The Trump-appointed judge had previously denied Kalshi's request to stop the case in late March, but granted this new order based on the federal government's demonstration of federal jurisdiction.
What Happens Next
The Arizona Attorney General's Office said it will inform the court on Monday that it will not move forward with the case while the temporary restraining order is in place.
The judge's order runs through April 24, providing a window for both sides to prepare their arguments for what will likely be a lengthy legal battle over state versus federal authority over emerging financial markets.
Kalshi was scheduled for an arraignment in Maricopa County Superior Court on Monday morning on the criminal charges, but that proceeding will not occur while the order is in place.
Why This Matters
This case sets up an important precedent for how emerging financial marketplaces are treated under state gambling laws. Arizona is the first state to file criminal charges against Kalshi, making this outcome potentially influential for other states considering similar actions.
The outcome could determine whether states can regulate prediction markets under traditional gambling laws or whether federal jurisdiction protects these platforms from state prosecution.