The CFTC is suing Illinois, Arizona, and Connecticut for attempting to regulate prediction markets like Kalshi and Polymarket. The federal regulator claims exclusive jurisdiction, arguing states overstep authority by treating these platforms as illegal gambling. CFTC defines prediction markets as "designated contract markets" where futures contracts trade on event outcomes.

Multiple states dispute this interpretation. Nevada sued Kalshi for operating without proper licenses, Arizona's AG filed similar charges, and Illinois and Connecticut sent cease-and-desist letters. The conflict stems from whether prediction markets constitute financial instruments or gambling. CFTC Chairman Michael S. Selig defends federal oversight.

The situation grows complicated with Trump family ties to the industry. Donald Trump Jr. serves as Kalshi advisor and Polymarket investor. Recent insider trading concerns before US military actions have eroded trust in self-policing. States remain unsatisfied with companies policing themselves amid these high-profile connections.