Already a done deal in Congress, the Iran nuclear agreement gained more momentum Sunday as former Secretary of State Colin Powell and Rep. Debbie Wasserman Schultz, the Democratic National Committee head, announcement their support.
The White House has clinched the necessary Senate votes to ensure that Congress will uphold the deal even if President Barack Obama ends up having to veto a disapproval resolution set for a vote in the week ahead.
But with that support in hand and more piling up, the White House and congressional backers of the deal have begun aiming for a more ambitious goal: enough commitments to bottle up the disapproval resolution in the Senate with a filibuster, preventing it from even coming to a final vote.