BBC AMERICA: Leading US Democratic Senator Chuck Schumer has announced that he is breaking ranks with President Obama by opposing the Iran nuclear deal.
He said there was a very real risk that Iran would use the agreement to pursue what he called its nefarious goals rather than moderate its approach.
Mr Schumer is the first Democratic Party senator to take such a stand.
Correspondents say his move is a serious blow to the president as he urges Congress to back the deal. » | Friday, August 7, 2015