"The deal on my desk is flawed, but after searching my own soul and conscience, I have decided I will support this agreement as the best available option…," Murphy said in a statement on Monday, according to the Palm Beach Post.
Also on Monday, New York Democratic Reps. Nydia Velazquez, Yvette Clarke and Gregory Meeks all backed the nuclear agreement.
Democrats appear close to having enough support for the deal to bottle up the disapproval measure with procedural motions. If Republicans vote in a united bloc, they would need the support of six Democrats to break a filibuster, but only two Democrats have broken ranks so far.
If the resolution is filibustered, it would be a major victory for the White House, which wouldn’t have to use President Obama’s veto pen to protect the Iran deal.
Iran and the Group 5+1 (Russia, China, the US, Britain, France and Germany- also known as P5+1 or E3+3) finalized the text of lasting deal on Tehran’s nuclear program on July 14.
When Congress returns to Capitol Hill from its August recess after Labor Day, both the House and Senate are expected to vote on resolutions disapproving the July 14 accord.
While it is expected Congress will vote to disapprove the deal, President Obama can veto their disapproval, and Republicans are unlikely to have the votes to override that veto as so far 31 US Democratic Senators have come in favor of the deal.