(AsiaGameHub) –   Prediction platform Kalshi has secured a significant legal win in Arizona, preventing state authorities from pursuing criminal charges against the company. US District Judge Michael Liburdi ruled that Attorney General Kris Mayes cannot prosecute the New York-based firm under Arizona’s gambling statutes. The decision supports Kalshi’s position that it is solely regulated by the CFTC.

Kalshi Argues That It Answers Only to the CFTC

Liburdi determined that regulatory authority over platforms like Kalshi lies exclusively with the Commodity Futures Trading Commission, leaving minimal room for state intervention. He emphasized that Congress has consistently opted to broaden federal oversight in this area, reflecting a clear preference for a unified regulatory system rather than fragmented state-level regulations.

Because Arizona’s gambling laws stand as an obstacle to federal regulation, those laws are preempted.

US District Judge Michael Liburdi

Arizona adopted an assertive approach. In March, Mayes unveiled a 20-count misdemeanor indictment against Kalshi, alleging the company operated an illegal betting scheme and offered contracts linked to election results. The state maintained that such activities amounted to unlawful gambling and warranted strict penalties under state law.

Kalshi has consistently argued that its products differ from conventional wagers. The company describes its offerings as “event contracts”—financial instruments enabling users to trade on the probability of real-world events. This distinction has formed the core of its legal defense, backed by a prior appellate decision that permitted election-related contracts under federal law.

The Dispute Could Reach the US Supreme Court

The Arizona case put Kalshi’s claims to the test. State officials insisted that Kalshi must adhere to local statutes despite operating under federal supervision, arguing the company should not be immune from state criminal laws. Liburdi rejected this view, cautioning that permitting states to enforce independent rules would create serious operational challenges for businesses seeking national reach.

The ruling transforms a previous temporary restraining order into a longer-term injunction against enforcement. Nonetheless, the Attorney General’s office retains the right to appeal. Legal analysts expect the battle to persist, noting that other states have launched comparable legal actions. Many anticipate the matter will ultimately reach the US Supreme Court, though a definitive resolution may still be years off.

This case adds another layer to the ongoing debate over prediction markets. Platforms such as Polymarket and Kalshi attract millions of users betting on outcomes ranging from elections to economic indicators. Advocates argue these markets serve as valuable predictive tools, while opponents view them as gambling disguised as financial instruments.