The Israelis tried a decapitation strike it failed. Now Iran has devolved power locally a decapitation is a suprise attack not one when you build up large forces.
Your cult leader if he starts an attack cant do a limited one, it will have to be a massive attack because he knows Iran wont be warning the US in advance as prior times. Iran will see any attack as an existential threat, we are looking at total war. Iran has hundreds if not thousands of anti ship missiles, drones which were never used v Israel, USN will become a target I would expect them to be much stronger than the houthis who your cult leader cut a deal with, that engagement ended in a stalemate.
As soon as US soldiers or sailors are killed to protect your aparthied buddies, US public opinion will turn so bad against pedo trumpy that Nov mid terms will make him a dead duck president who will go down as the biggest loser in history.
He doesn't have a stomach for a long war.