The Senate Foreign Relations Committee just passed S.615, the Iran Nuclear Agreement Review Act, which could allow the US Congress to block implementation of a comprehensive nuclear deal between Iran and the P5+1. The bill would mandate that the administration send the text of a final accord to Congress, halt any lifting of sanctions during a congressional review, and culminate in a possible vote to forbid the lifting of Congressionally imposed sanctions. This move means that the bill can now move to the Senate floor for a vote. It is worth noting that the version of the bill that was passed today has been softened since its more controversial version was originally proposed by Senators Bob Menendez and Mark Kirk. The compromise legislation would shorten a review period for a final deal and soften language that would make the lifting of sanctions dependent on Iran ending its support for terrorism. The Obama administration announced that while it is “not thrilled” about the legislation, it will nevertheless sign it in its softened form.