"It is not certain that a US withdrawal from the accord would necessarily cause its collapse because Iran and the other parties to the accord will try to continue implementing it," the private intelligence Soufan Center report said.
European governments will likely encourage their corporations to continue transactions with Iran and try to protect them from re-imposed US sanctions, the report said.
READ MORE: US Senator Corker Suggests Trump to Pull out Iran Nuclear Deal in May (VIDEO)
The agreement between Iran and six world powers – the US, UK, Russia, France, China, and Germany – lifted economic sanctions against Tehran in return for temporary limits on the country’s nuclear program that begin expiring in the next decade.
Like Trump, Bolton has been a high-profile opponent of the nuclear accord and previously lobbied the administration to exit the deal, according to published reports.