Despite the tendentiousness of what she implies, what she technically says does have a smidgen of truth. If Trump doesn't recertify, all the benefits Iran has already received are not required to be returned. The only people that might have pretended that would be the case have long been drinking Obama's Kool-Aide. We've long suspected if not known Obama was just giving away the farm--largely in cash and nuclear OKIE-DOKIES--to ValJar & Christiane's mother country.
Yes, Trump "risks alienating" the other signatory nations, Britain, France, Germany, Russia, China and the United Nations, but so far only Amanpour seems to think Trump cannot do what he said.
If by saying "the Iran deal cannot be undone" Amanpour means we're not going to get back the pallets of cash we sent, she has a sloppy, biased way of attacking Trump to say it. But for the most part, Christiane is just wrong and misleading.
Agreed