Sens. Schumer and Menendez have come out against Iran nuclear deal, but that is not enough even for a vote of disapproval.

Senators Chuck Schumer and Bob Menendez have come out openly against the Iran nuclear deal, but a current analysis says the deal's opponents are struggling just to get a 60-seat majority of senators to vote for a resolution of disapproval of the deal.

Achieving a 67-seat majority that would enable them to override the president's expected veto of such a resolution will be even more difficult.

According to Politico, the announcements by Schumer two weeks ago and then Menendez on Tuesday “certainly were a boon to Republican lawmakers and groups still holding out hope of squelching the controversial accord,” but “after those two New York-area senators, it becomes more difficult to identify other Democrats who’ll be willing to break with Obama on his signature foreign policy initiative.”

The announcements by the two senators were expected by some to influence other senators into climbing aboard the anti-deal bandwagon, but Schumer, who is expected to become the next Senate Minority Leader, is not whipping fellow Democrats to join him in voting against the deal.

Meanwhile, Menendez is facing corruption charges – a fact that forced him to cede his status as Chairman of the Foreign Relations Committee to the “far less hawkish” Sen. Ben Cardin of Maryland.

There are some who hope Sen. Harry Reid of Nevada would be talked into opposing the deal by Nevada movers and shakers including businessman Sheldon Adelson. But this still leaves three more Democrats to go before a 60-seat majority

Senate Majority Leader Mitch McConnell (R-Ky) has admitted that it is unlikely Congress will be able to block the nuclear deal. He estimated that President Barack Obama has "a great likelihood of success" in pushing the deal through. "I hope we can defeat it, but the procedure is obviously stacked in the president's favor," McConnell told reporters. "We'll see."

Senate Democratic leaders Harry Reid of Nevada and Patty Murray of Washington, as well as a number of centrist Democrats, are still undecided, according to Politico. “But the math remains firmly on Obama’s side.”