April 30, 2026
A coalition of tribal gaming groups and federally recognized tribes won permission on Thursday to file briefs backing Michigan officials in suits by Robinhood Derivatives LLC and Polymarket US over sports-related event contracts, arguing the companies' claims threaten to upend tribal-state gaming regulation and siphon revenue from tribal governments.
March 10, 2026
There's "no logical way" to view Polymarket's event contracts — which allow people to profit or lose on sports-related outcomes — as financial "swaps" as defined in the Commodity Exchange Act, a federal judge said Tuesday, denying the company's request to temporarily block Michigan officials from imposing state gambling laws.
March 06, 2026
Polymarket US urged a Michigan federal judge to block the Great Lakes State from initiating any illegal gambling enforcement action against it, saying its prediction market exchange falls entirely under the purview of the Commodity Futures Trading Commission.
March 04, 2026
Polymarket US filed suit Wednesday seeking to block Michigan from enforcing its gambling laws against the prediction-market exchange, marking the latest in the fight between prediction-market exchanges and state regulators that is playing out across the country.