WASHINGTON (Reuters) – President Donald Trump finds himself under immense pressure as he considers de-certifying the international nuclear deal with Iran, a move that would ignore warnings from inside and outside his administration that to do so would risk undermining U.S. credibility. U.S. President Donald Trump speaks about tax reform in Harrisburg, Pennsylvania, U.S., October 11, 2017. REUTERS/Joshua Roberts Trump is expected to unveil a broad strategy on confronting Iran this week, likely on Friday. There was always the chance he could still have a last-minute change of heart and certify Iran’s compliance with the 2015 accord, which he has called an “embarrassment” and the “worst deal ever negotiated.” Senior U.S. officials, European allies and prominent U.S. lawmakers have told Trump that refusing to certify the deal would leave the U.S. isolated, concede the diplomatic high ground to Tehran, and ultimately risk the unraveling of the agreement. Signed by […]