Vote count in favor of Iran deal climbs to 30 in US Senate

Democrats need 41 votes to block resolution aiming to disapprove the deal

Democratic Senator Tom Carper today became the 30th senator to announce support for the Iran nuclear deal, as momentum for the White House-backed agreement grows.

If Senate Democrats can amass 41 votes in favor of the deal, they could block passage of a congressional resolution to disapprove of the deal.

If that doesn't happen and the Republican-led Senate votes to disapprove of the deal, President Barack Obama has vowed to veto it. Democrats then would need 34 votes four more than they have now to prevent a congressional override of the presidential veto.

A vote on the nuclear deal the US and other world powers negotiated with Iran is scheduled for early September. "This next week or 10 days will be critical because those that have really been thinking over long and hard about where they're going to end up, many of them are likely to announce something before we return from the Labor Day recess," Durbin said in an interview with The Associated Press.

He wouldn't predict the success of getting to 34 or 41 votes, but said some of the 14 undecided Democrats likely would announce their decision before Congress returns from its August recess.

Republicans are unanimously against the deal which provides sanctions relief to Iran in exchange for constraints on its nuclear program. Two Senate Democrats also have announced their opposition.

In an opinion piece in The News Journal of Wilmington, Delaware, Carper said the deal was good for America and allies, including Israel.