Defense Secretary Mattis defies Trump in call to preserve Iran deal
US Defense Secretary James Mattis expressed faith in the nuke accord's importance despite the president's clear aversion to it, just as the world looks to the US to lead the policy on Tehran.
US PRESIDENT Donald Trump is flanked by Secretary of State Rex Tillerson (left) and Defense Secretary James Mattis at the White House(photo credit: REUTERS)ByMICHAEL WILNERUpdated: