Sen. Dianne Feinstein, a top member of the minority party in the upper chamber, met recently with Iranian Foreign Minister Mohammad Javad Zarif at a time of escalating tensions between Washington and Tehran. The two had dinner around the end of last month when Zarif was visiting the U.S., sources told Politico. Feinstein's team said the dinner was designed to update the senator on the situation between the U.S. and Iran and was "arranged in consultation with the State Department." A State Department official said the agency did not ask the California Democrat to meet with Zarif, but did not...