You are taking media talk too seriously, thats not how actual world works.
Why do you think Iran has not announced NPT departure completely and US has not entered the conflict ? Answer: Trump does not want to be the president under whose watch Iran acquired nuclear weapons while Israel was getting it in its rear orifice from IRGC.
Trump or his advisors know very well this is a un-natural war that will stop in few days on itself because of geography and Iran might be back to talks using that 600 KG of HEU as a bargaining chip. Trump will claim he bargained peace and made a new deal with Iran, his ambitions are bigger than AIPAC control over him.