Arizona Attorney General Files First U.S. Criminal Charges Against Prediction Market Kalshi

Prediction market operator Kalshi is now confronting its inaugural set of criminal charges in the United States, as Arizona Attorney General Kris Mayes initiated legal action by filing 20 misdemeanor counts against the company. The charges, lodged in the Superior Court of the State of Arizona, County of Maricopa, on Monday, March 16, accuse Kalshi of operating an "illegal gambling business" and offering wagers on elections, in violation of state law.

This significant legal development follows Kalshi's proactive measure just days prior, when it filed a civil lawsuit against Arizona. That action was in direct response to a cease-and-desist letter issued by the state last year, indicating an escalating dispute between the firm and regulatory bodies.

Legal experts, including David Wallach, have highlighted the unprecedented nature of these criminal proceedings. This marks the first instance across any U.S. court where Kalshi has been subjected to criminal charges, intensifying the scrutiny on the company's operational model.

Attorney General Mayes articulated the state's position in a statement, asserting that while Kalshi presents itself as a 'prediction market,' its activities constitute an unauthorized gambling operation, particularly concerning Arizona elections. "No company gets to decide for itself which laws to follow," Mayes stated, reinforcing the state's commitment to upholding its legal framework. She added, "Arizona will not be bullied into letting any company place itself above state law."

The filed complaint specifically targets several markets offered by Kalshi. These include alleged 'wagers' – which Kalshi refers to as 'trades' or 'markets' – on individual athlete performances in sports and numerous political events. Prominent among the cited examples are the 2026 Arizona gubernatorial contest, the 2026 Arizona Republican gubernatorial primary, and the 2026 Arizona secretary of state race. Additionally, the Attorney General's office referenced markets related to the 2028 U.S. presidential race and propositions concerning the SAVE Act.

These Arizona charges unfold amidst a broader landscape of regulatory challenges for Kalshi, which is simultaneously engaged in legal battles in various other states, including Massachusetts, Nevada, and New Jersey. The current criminal charges in Arizona underscore an intensifying regulatory push to define the legal boundaries of prediction markets and their alignment with existing gambling statutes across the nation.