Iran Deal Faces Test in Congress (Updated) (Video)

Bob Corker and Ben Cardin authored the Iran Nuclear Review Act requiring Congressional review before Obama can waive sanctions in an Iran nuclear deal. (Tom Williams/CQ Roll Call File Photo)

Updated 9:55 a.m. | President Barack Obama's Iran deal will face a moment of truth in Congress within the next three months, but seems very likely to clear that hurdle.  

Under the law Congress passed to ensure its review of any Iran deal, opponents of the deal have to be able to override a veto on a disapproval resolution to stop it from going into effect. That's a tall order, with 290 House votes and 67 in the Senate needed to assure an override.

The 60-day review period begins once all of the paperwork gets submitted to Congress, per a statement from Sen. Bob Corker, R-Tenn. That delay would be extended by up to 12 days if the House and Senate send a joint resolution to the president, and Congress would have 10 more days after that to consider an override.

The bottom line: Unless Democrats abandon the president wholesale , the deal will stick.