Kalshi is caught in a legal tug-of-war between Michigan and the federal government. The prediction market platform’s fight with the Michigan Attorney General could land before the US Supreme Court, potentially setting the definitive precedent for who actually gets to regulate prediction markets.

Two governments, two orders, one company

Michigan Attorney General Dana Nessel filed suit against KalshiEx LLC on March 3, 2026, in Ingham County Circuit Court. The accusation was straightforward: Kalshi was allegedly violating Michigan’s Lawful Sports Betting Act by offering unlicensed sports event contracts to state residents.

The case wound through procedural channels, with a federal district court eventually remanding it back to state court. On June 29, 2026, Judge Rosemarie Aquilina issued a temporary restraining order that blocked Kalshi from offering or advertising sports-related contracts to anyone in Michigan.

Then, in July 2026, the CFTC stepped in and ordered Kalshi to continue its Michigan trades — the federal regulator told Kalshi to keep doing the exact thing the state court told it to stop doing.

The core question is whether the Commodity Futures Trading Commission’s federal authority over derivatives markets preempts state gambling laws. Kalshi operates as a CFTC-regulated exchange, meaning it views its event contracts as financial instruments, not bets. Michigan sees them as unlicensed sports wagers.

The preemption puzzle

The CFTC’s July directive to Kalshi was a bold move. By ordering the platform to maintain its Michigan operations despite a state court injunction, the federal agency signaled that it considers prediction market contracts to fall within its regulatory domain, state gambling laws notwithstanding.

In December 2025, Coinbase filed lawsuits against multiple states, including Michigan, arguing that prediction markets fall under CFTC authority. Concurrent litigation also involves Polymarket in Michigan and Kentucky, indicating a larger confrontation over the future governance of digital prediction markets.

What this means for investors

A ruling favoring federal preemption would mean Kalshi operating under one set of CFTC rules nationwide. If states retain the ability to classify prediction market contracts as gambling, platforms would need to navigate licensing requirements in every jurisdiction, much like traditional sportsbooks do today.

The CFTC’s willingness to directly contradict a state court order suggests the agency is serious about defending its turf over digital asset derivatives. The CFTC granted Kalshi status as a designated contract market, allowing for sports event contracts, a move that began in earnest in 2025.