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Senate bill would ban sports betting on regulated prediction markets

Mar 23rd 2026 ยท United States

A bipartisan Senate bill would prohibit federally regulated prediction markets from offering sports betting and casino-style games, intensifying a legal and regulatory fight involving Kalshi, Polymarket, state prosecutors and the CFTC.

  • Senators Adam Schiff and John Curtis introduced a bipartisan bill to bar federally regulated prediction platforms from offering wagers on sporting events and casino-style games.
  • The measure targets marketplaces such as Kalshi and Polymarket that operate under Commodity Futures Trading Commission oversight.
  • Sponsors say sports prediction contracts circumvent state consumer protections and tribal sovereignty and should fall under state control.
  • Kalshi warned a federal ban would push activity offshore and accused casino interests of driving the effort.
  • States are taking action: Nevada won a temporary restraining order limiting Kalshi's operations and Arizona has filed criminal charges against the company.
  • The dispute follows the 2018 Supreme Court ruling that reopened sports betting to state regulation and has driven rapid growth in online prediction markets.