From The Washington Post:
Sen. Patty Murray (Wash.), an influential member of Democratic leadership, endorsed the Iran nuclear deal Tuesday in a lengthy statement that voiced some doubts of the plan's efficacy but gave a strong overall backing for the outline.http://www.washingtonpost.com/...Murray became the 29th Democrat in the Senate to back the plan, with only two Democrats declared in opposition, putting the White House on the cusp of ensuring President Obama can fully implement the pact lifting sanctions on Iran in exchange for limits on its nuclear development.
Obama's opponents need to win over 11 of the remaining 15 Senate Democrats who have not declared their positions on the deal, or else those opposed to it will fall short of the two-thirds majority they need to override the president's veto of their legislation disapproving of the agreement.