A U.S. federal appeals court approved derivatives exchange Kalshi to list event contracts related to U.S. election results in an Oct. 2 ruling, despite opposition from regulators. The ruling paves the way for election prediction markets to operate, potentially including Web3 platforms like Polymarket, in the U.S. On Oct. 2, the U.S. Court of Appeals for the District of Columbia Circuit rejected an attempt by the U.S. Commodity Futures Trading Commission (CFTC) to block Kalshi from listing derivatives tied to political outcomes, just ahead of the U.S. presidential election.