> They won't invoke nukes to overturn the table
How do you know? Trump's frustration is on the rise; at some point he very well may threaten nuclear strikes.
Another scenario is, he tries to invade, an Iranian drone makes it through and sinks a big US ship, hundreds or even thousands of American soldiers die in a very short period of time. Now everyone's upset and the American public screams "revenge".
Then anything can happen, really.