WASHINGTON, DC - JULY 31:  U.S. Treasury Secretary Steven Mnuchin (L)  takes questions as National Security Adviser H.R. McMaster (R) looks on during a daily briefing at the James Brady Press Briefing Room of the White House July 31, 2017 in Washington, DC. The U.S. government has imposed sanctions on President of Venezuela Nicolas Maduro after the passing of a legislation that will further consolidate his power.  (Photo by Alex Wong/Getty Images)