Michigan Court Blocks Kalshi Sports Contracts
A temporary restraining order hands Kalshi its second legal defeat in days, deepening state-vs-federal tensions.

Michigan Circuit Court Judge Rosemarie Aquilina granted a temporary restraining order (TRO) Monday blocking Kalshi from offering sports event contracts in the state, just days after the prediction market operator lost a bid to shift its fight to federal court.
Why It Matters
Two consecutive legal defeats in quick succession signal that Kalshi's strategy of operating sports-event contracts under federal CFTC oversight — rather than state gambling law — faces serious judicial resistance at the state level. Michigan Attorney General Dana Nessel successfully argued the company's products fall under state gambling jurisdiction, a ruling that, if upheld, could set persuasive precedent for other states weighing similar enforcement actions. For prediction market operators broadly, this narrows the window between CFTC-regulated financial contracts and state-regulated sports betting. Operators and investors in the space should treat Michigan as a leading indicator of regulatory friction ahead.
Context
Kalshi has argued its sports event contracts are federally regulated derivatives, not sports wagers, placing them outside state gambling authority — a position the CFTC has broadly supported. The federal-removal attempt that failed immediately before this TRO suggests courts are not yet ready to accept that framing wholesale, according to reporting by SBC Americas (sbcamericas.com). The Michigan action is part of a broader multi-state pushback against prediction markets that exploded in visibility after Kalshi and rivals began offering election and sports contracts to retail users.
What's Next
Judge Aquilina's TRO is temporary; a fuller hearing will determine whether a preliminary injunction follows. Kalshi's response to that hearing — and whether it again attempts federal removal — will clarify whether the company has a viable path in Michigan or must exit the market.
Gambling involves financial risk. Prediction market contracts can result in total loss of staked capital.
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