[US Commodity Futures Trading Commission Sues Louisiana, Challenging Prediction Market Ban] The US Commodity Futures Trading Commission (CFTC) has sued the state of Louisiana, seeking to block the state's ban on exchanges and other institutions regulated by the CFTC offering event trading contracts. The CFTC claims that a Louisiana court issued an order halting the operations of more than 30 companies in the state involved in derivatives trading regulated by the CFTC without providing the defendants with notice or an opportunity to present their case. The agency stated that Louisiana is the 12th state it has sued to defend its exclusive jurisdiction over the derivatives market.