Kalshi and Polymarket face a lawsuit filed by Kentucky Attorney General Russell Coleman on June 17, 2026, accusing the platforms of conducting unlawful sports‑betting operations within the state.
Legal Complaint Details
The complaint alleges that both prediction market operators run illegal sportsbooks that violate Kentucky gambling statutes. It further asserts that the companies failed to provide mandated resources for individuals dealing with gambling addiction, a requirement embedded in state law.
Involvement of Financial Partners
Attorney General Coleman’s filing identifies Coinbase, Robinhood, and Webull as partner entities linked to Kalshi’s operations. Kentucky officials contend that these financial platforms ignored their duty to support problem‑gamblers, thereby breaching regulatory obligations.
Market and Regulatory Impact
Token Terminal data shows Kalshi and Polymarket together processed roughly $25 billion in transaction volume during May 2026, highlighting the scale of their crypto‑based markets. Both firms maintain that their event‑driven contracts qualify as swaps under federal commodities regulations, arguing that they fall outside the scope of state‑level sports wagering oversight.