Passage of the bill that would reauthorize operations of the Commodity Futures Trading Commission (CFTC) through fiscal 2019 and amend the 2010 Dodd-Frank Act to modify and clarify how the CFTC is to regulate derivatives and swaps. The bill would make numerous changes to CFTC operations. It would establish the Office of the Chief Economist and require the agency to conduct cost-benefit analyses of its proposed rules and improve safeguards of market data in its control.