Mayes Sought to End Arizona Prediction Market Injunction
The Arizona attorney general asked a federal court to lift a block on her office's prosecution of the Kalshi platform.
Updated on Sept. 25, 2026 in Gambling
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Arizona Attorney General Kris Mayes filed a request in September 2026 to dissolve a federal injunction that currently bars her from prosecuting Kalshi for potential violations of state election betting and gambling laws. The motion asks the 9th Circuit Court of Appeals to allow the state's legal proceedings to move forward.
Why it matters
The case hinges on whether prediction markets involving sports or election outcomes are federally protected, a question Mayes contends was resolved by a recent Nevada appellate ruling. If the injunction remains, it limits Arizona's authority to enforce local gambling statutes against platforms operating in the state.
A 3-judge panel in the Nevada case determined that sports events do not qualify as swaps under the Commodity Exchange Act. This ruling forms the basis for Mayes' argument that the Arizona injunction should be vacated.
The players
Kris Mayes
Kris Mayes is the attorney general of Arizona who has sought to pursue legal action against gambling platforms.
Kalshi
Kalshi is a prediction market platform that faces scrutiny over its adherence to state gambling and election betting laws.
Michael Liburdi
Michael Liburdi is a federal judge who issued the injunction protecting the prediction market operator from state prosecution.
Commodity Futures Trading Commission
The Commodity Futures Trading Commission is a federal agency that claims regulatory authority over prediction markets.
The details
Judge Michael Liburdi previously issued an injunction in May 2026 preventing Arizona officials from prosecuting Kalshi, citing concerns over conflicts with federal election betting and gambling law. The Commodity Futures Trading Commission is currently opposing the move to lift this injunction, arguing that it is premature while further rehearings are possible.
Timeline
May 2026: Judge Liburdi issued an injunction favoring Kalshi's legal reading.
August 2026: Appellate judges ruled on the Nevada case.
September 2026: Mayes filed a request to overturn the injunction.
Culture Shift
The ongoing legal tug-of-war reflects a broader societal shift as digital prediction markets challenge traditional state-level boundaries for regulated gambling. This trend suggests that current legislative frameworks may be insufficient to govern modern, algorithm-driven betting platforms.
Residents should be aware that the legality of these betting platforms remains in flux while the court determines the scope of state versus federal oversight. The outcome of this case will likely define whether Arizonans can continue to participate in specific prediction markets hosted by platforms like Kalshi.
The takeaway
The tension between state enforcement and federal market regulation highlights the growing complexity of legalizing new financial betting instruments. Readers should track upcoming appellate rulings, as they will determine the future availability of these prediction platforms within Arizona borders.
Further reading
For more background on how state authorities regulate betting, visit the Gambling section.
Source note: This article includes information reported by Tucson Sentinel.
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