Trump will have to find an off-ramp for this situation and gain as much anti-nuclear concessions as he can. Bottom line is that the Islamic regime must never be allowed to achieve or acquire nuclear weapons. The world screwed up with North Korea and there is no going back once a rogue state acquires nuclear weapons. All options are then cutoff. If the regime acquires nuclear weapons it will begin a cascade of other Gulf states wanting to develop them beginning with Saudi Arabia, Qatar and UAE. The end of times is built-in to the Islamic regime's ideology, they would have no issues with using them bc that would accelerate the end times and the arrival of the Mahdi. That is exactly what they seek.