Michigan Attorney General Challenges Sports Contract Operators

Michigan Attorney General Dana Nessel pushes operators out of sports contracts

Henry Williams, the executive director of Michigan's Gaming Control Board, issued a statement Wednesday that read like a closing argument: Coinbase joining Robinhood and Kalshi in stepping back from unlicensed sports contracts, he said, "underscores Michigan's commitment to enforcing its gaming laws." Three firms, three separate agreements or injunctions, one state that has not waited for federal resolution to act.

The Coinbase settlement is the cleanest illustration of where state enforcement stands right now. Coinbase Financial Markets agreed to stop offering new sports-event contracts to Michigan customers by midnight Saturday and to close out all remaining open positions by the same deadline. In exchange, the MGCB agreed not to pursue enforcement action while the underlying appeals move through the Sixth Circuit and, potentially, the Supreme Court. The agreement explicitly preserves all parties' legal rights. Michigan got the commercial result it wanted without needing a final ruling to get there.

That structure — operational concession in exchange for enforcement forbearance — is worth examining carefully. It is not a legal victory for Michigan, and the MGCB was precise about this: the settlement does not resolve whether the state may regulate CFTC-registered event contracts as gambling. What it does is remove the product from the market while the courts decide. For a regulator, that sequence is almost as good as winning, and in some ways better. A settlement can be negotiated faster than an appellate timeline, and it produces the result that matters to the political principal — Attorney General Dana Nessel, who publicly warned remaining operators that compliance would come "by agreement or court order."

Nessel's phrasing is the most important sentence in the public record right now. It signals that Michigan is not treating the Sixth Circuit's August ruling as a ceiling — it is treating it as a floor. The state has already demonstrated it can use the threat of enforcement to extract voluntary exits even from CFTC-registered operators who have not yet lost at the appellate level. Coinbase's Sixth Circuit appeal is still pending, stayed alongside Robinhood's, Polymarket's, and Kalshi's. Every one of those firms has now made some form of operational concession in Michigan while their legal arguments remain unresolved.

The reporting on this from Washington tends to frame the Kalshi litigation as a binary: either the CFTC's federal registration preempts state gambling law, or it does not. That framing misses something I have seen in other regulatory contests involving layered jurisdiction — the enforcement pressure does not wait for the binary to resolve. States that move fast and credibly create a separate equilibrium in which operators exit markets not because they have lost the legal argument, but because the cost of staying exceeds the near-term revenue. Michigan has now demonstrated that equilibrium is achievable with three separate firms. The legal question remains open. The commercial effect is already priced in.

Where this leaves prediction markets more broadly is a question the current Sixth Circuit consolidation will eventually answer, but probably not before mid-2027 given the Supreme Court's timeline. Until then, any operator running sports-event contracts in a state with an active attorney general and a functional gaming board is running an exposure that cannot be fully hedged by CFTC registration alone. Michigan has made that structural point three times in the same week, and it has not needed a final ruling to make it once.