Republicans’ Dangerous Letter to Iran

David Ignatius, Washington Post
WASHINGTON — Even by congressional Republican standards, the naysaying letter to Iran sent Monday by 47 GOP senators was grossly irresponsible. Not only did it undercut President Obama’s ability to negotiate a diplomatic agreement but it also undermined the aspect of the Iran nuclear deal that would potentially be most beneficial to the United States and Israel.From the beginning of the Iran nuclear talks, a key U.S. goal has been to obtain an agreement whose duration is long enough that it will bind Iran’s actions into the next generation of leaders who will follow Supreme Leader Ali…