I agree with what Brit Hume (?) said the other day, namely, that Schumer will vote against the Iran sell-out as long as Obama doesn’t need his vote.
But if it looks as if there will be exactly 60 votes to bring an anti-sellout bill to the Senate floor, Schumer will suddenly switch sides and join with Obama against Israel. Then the opponents of the deal will only have 59 votes against a filibuster by Obama supporters, which means the deal won’t be voted down.
Bingo! That's exactly what I though when I saw the headline.