Late to the party, and as I reply to above Trump has just announced his intent to d(r)ump the deal.Addie wrote: ↑Thu Oct 12, 2017 11:02 amNew York Times
Growing Chorus Confronts Trump Against Leaving Nuclear Deal
WASHINGTON — President Trump is coming under mounting pressure from European allies and fellow Republicans to preserve the Iran nuclear deal. With the president widely expected to disavow the agreement when he outlines his Iran strategy on Friday, defenders and even erstwhile opponents of the deal are urging him not to unravel it completely.
Mr. Trump’s top national security aides are united behind a plan to decertify the deal, but leave it in place, with a goal of revising its terms. But in pursuing that course, the president will set off a volatile sequence of events that some warn could end up mortally wounding the agreement.
On Capitol Hill, lawmakers will have to decide whether to reimpose punitive sanctions on Tehran, a move that would almost certainly scuttle the 2015 deal that was brokered by world powers. In European capitals, allies are showing signs of resisting pressure to join the United States in trying to renegotiate its terms.
“While the Trump administration is making a very fine distinction between a decertification that is a report to Congress rather than leaving the deal, I’m concerned that that distinction will be lost on our allies and adversaries,” said Senator Chris Coons, a senior Democrat on the Foreign Relations Committee.
IIRC Teh Donald needs Congress to reinstate sanctions and I believe he did not get that guarantee. As to "renegotiation", Iran has no need to participate. They have the guarantee of the other signing nations, so those (and other Europeans) will most likely not not join any future sanctions until Iran were to inhibit the inspections and return to nuclear production. Also too, the US has its State Department still in shambles. No way that they can build a negotiation team of a couple of hundred of career diplomats that are knowlegable on the discussion subjects. And he cannot send those same diplomats that under Kerry negotiated the deal, they would be seen by Iran as non-entities with "lost face".