From Meet the Press interview with Trump

Mike Lee is an imbecile. Those words won’t help them do jack shit. This is not news or worthy.

So can or can't he alter the 14th amendment?

No r2, he can’t.

He cannot, unless the Constitution is amended. The citizenship clause is direct and unambiguous; it is settled law.

We'll see about that, R4.

He would need the approval of 38 states to amend the Constitution. That would require 8 blue states to flip for him.

Oooo, settled law? I’ve heard that before.

He can lead an effort to amend the Constitution. It’s not an outrageous idea, though in this partisan environment, it’s hard to see it getting 2/3rds of both Houses of Congress.

It's nuts to try to amend the Constitution, he has a million other things he promised to do, like deport 8 million people and get the price of eggs down to $1.50 again. The expenditure of political capital to try and accomplish such a task would be enormous. But, he's stupid enough to waste time to try to do it, certainly.

It will fail because it’s empty partisan nonsense. Birthright citizenship might have been a mistake, but it’s got little practical significance.

Let him waste his time on birthright citizenship. He's incapable of multitasking and by focusing on the attempt to edit the constitution, he won't be fucking up something else that would have been easier to do. Plus with his clown show Cabinet being overwhelmed with the jobs they weren't qualified for, other than kissing his ass, the country might not suffer as much as it could have.