http://thehill.com/blogs/global-affairs/middle-east-north-africa/197159-iran-sanctions-backers-give-up-search-for-60th#ixzz2sFvZIxJQ
Proponents of Iran sanctions have all but abandoned their search for a highly symbolic 60th co-sponsor who would give their bill a filibuster-proof majority and reverse the push against immediate action.
The number of Democrats and Republicans on the bill has been stuck at 59 for more than three weeks, with the White House effectively locking up the Democratic Caucus with a threat to veto a bill it says could doom nuclear talks and precipitate war.
The momentum has instead been going the other way, with at least four co-sponsors – Sens. Joe Manchin (D-W.Va.), Chris Coons (D-Del.), Ben Cardin (D-Md.) and Richard Blumenthal (D-Conn.) – saying they’re OK with waiting.
The bill’s champions profess not to be worried. They say they can always count on the Iranians to say or do something so outrageous that Senate Majority Leader Harry Reid (D-Nev.) will have no choice but to bring the vote to the floor, where they expect it to pass overwhelmingly.