WASHINGTON (Reuters) - White House adviser Peter Navarro on Friday lashed out at efforts by current and former Wall Street executives to urge the United States and China to end their trade dispute, calling them “unregistered foreign agents” who were trying to pressure President Donald Trump into a deal. White House trade advisor Peter Navarro looks on as U.S. President Donald Trump participates in a roundtable discussion about trade in Duluth, Minnesota, U.S. June 20, 2018.