If Trump loses (as seems likely now), it’s probably a blessing in disguise for him. He needs to have better organization in the states and not just depend on his own celebrity. This will be very hard for him to take, but it will show him that he really needs to run for the job, not take it for granted.
I think NH is going to very difficult for Rubio or Cruz.
I do not think Mr. Trump will come unhinged. I think he will get to work.