Mr Trump is under pressure both at home and abroad not to scrap the deal
Pressure is mounting on US President Donald Trump as he mulls a key announcement on whether Iran is complying with the nuclear deal.
If, as US media predicts, he does not certify the accord, Congress will then decide whether to re-impose sanctions. He has until 15 October to decide.
The historic international agreement eased sanctions on Iran in exchange for curbs on its nuclear activity.
Mr Trump is under pressure both at home and abroad not to scrap the deal.
Some of Mr Trump’s top advisers have signalled support for the deal, including Defence Secretary James Mattis, who told a senate hearing earlier this month it was not in the national interest to abandon it.
Ed Royce, the Republican chairman of the House Foreign Affairs Committee, has said that though the deal is “flawed, I believe we must now enforce the hell out of it”.
Mr Trump has also been urged by foreign leaders, including British PM Theresa May and French President Emmanuel Macron, to keep the deal.
Lady Catherine Ashton, the former European Union foreign policy chief who helped negotiate the deal, told the BBC that “it’s an agreement that does what it says on the tin. It doesn’t try and do more…. that needs to be understood and recognised in Washington”.