Kalshi and Polymarket US filed federal suits against Missouri and Louisiana on the same day the CFTC sued Utah. The cases push the preemption fight into two states where licensed sportsbooks and casino partners stand to lose business to untaxed competitors.

Two more states now face prediction market operators in federal court. Kalshi’s case targets Missouri, while Polymarket US went after Louisiana. The CFTC filed its own suit against Utah that same day.

Kalshi is challenging a cease-and-desist demand from Missouri. The state told it to pull its sports event contracts or get a state sports betting license. Polymarket US filed as QCX LLC. It named Louisiana’s attorney general and the Louisiana Gaming Control Board as defendants.

Both companies make the same core argument. They say federal commodities law, the Commodity Exchange Act, overrides state gambling enforcement.

Missouri treats event contracts as unlicensed sports wagering

Missouri’s position is direct.…