Maggie Haberman is a tool and an access journalist but she's spent 9 years covering the guy and she's probably had a hand in writing more than a million words about the guy at the NYT.
She knows him better than maybe any other journalist. And as much as I hate her - I trust her observations on this. In fact - I assume she's sitting on lot of recent juicy examples that will only appear years later in one of her books.
05:47 https://www.youtube.com/watch?v=YSWa6S1r6Ec&t=347s
"The music thing is a big thing for him. It was how people would basically 'reset' him in the White House."
~7:42 She talks about him at a dinner.
"It was as if he had no sense of who he was in front of or who he was talking to... It's like he's devoid of context. It's like he's showing up and behaving."
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Rant
Media outlets need to provide transcripts. It's super annoying to hunt for this sort of crap.
YOUNG MAN