Heinrich leads Democratic senators, N.M. tribes in push to tighten prediction market rules
Senator Heinrich (D-N.M.) led Democratic colleagues on July 20 in urging Senate committees to tighten regulation of prediction markets. The letter, co-signed with New Mexico tribes and pueblos, warns that the Digital Asset Market Clarity Act (CLARITY) would let platforms offer online casino-style gaming and sports betting that could divert revenue tribal governments rely on for healthcare and services. Senators rejected distinguishing sports-event contracts from casino-style products. The push targets no specific platform.
The letter widens the congressional front against prediction markets while a bipartisan Senate bill already threatens to ban sports event contracts outright. For Kalshi and Polymarket, both CFTC-registered and now fighting state actions in New York, Michigan, Illinois, and New Mexico, Heinrich's move signals that federal pressure may come from multiple angles simultaneously. The CLARITY reference matters because that legislation could create loopholes platforms exploit.
Tribal nations frame this as survival-level revenue protection, not mere regulation. Senate Democrats fold tribal gaming concerns into the same bill advancing the sports-contract ban, Kalshi and Polymarket face a compound threat: stripped of their core vertical and exposed to state gambling law. The platforms' legal teams must now track committee markup timing alongside their court calendars.