The Commodity Futures Trading Commission filed lawsuits challenging actions by Arizona, Connecticut and Illinois directed at CFTC-registered designated contract markets that facilitate trading in lawful event contracts, asserting that the Commodity Exchange Act gives the CFTC exclusive jurisdiction over these markets. The agency argued that state efforts to outlaw, regulate or otherwise restrain event contract trading would create inconsistent requirements and undermine the national framework Congress chose for commodity derivatives markets. It linked its position to its historical recognition of event contracts, including its 1992 approval of the Iowa Electronic Markets, and to Congress’s post-2008 grant of comprehensive authority over contracts based on commodities, which are broadly defined in the statute. Alongside the litigation, the CFTC pointed to its recent Advanced Notice of Proposed Rulemaking on prediction markets and indicated it expects to proceed with regulation intended to reinforce applicable obligations under the Commodity Exchange Act and CFTC rules.