Exclusive: For now, U.S. wants Europeans just to commit to improve Iran deal

By Arshad Mohammed, John Irish and Robin EmmottWASHINGTON/PARIS/MUNICH (Reuters) - The United States has sketched out a path under which three key European allies would simply commit to try to improve the Iran nuclear deal over time in return for U.S. President Donald Trump keeping the pact alive by renewing U.S. sanctions relief in May.The approach, outlined in a State Department cable obtained by Reuters and an interview with a senior department official this week, still faces obstacles.The Eu