So Trump returns to the White House this week just as he left — lonely, angry and not happy with much of anyone. The presidency, Donald Trump is discovering, is not an easy or natural fit.

“He now lives within himself, which is a dangerous place for Donald Trump to be,” says someone who speaks with the President. “I see him emotionally withdrawing. He’s gained weight. He doesn’t have anybody whom he trusts.”

The question, he adds, is whether Trump will understand the enormity of what he faces or will instead “be back to being arrogant and stubborn.” He will have to realize that “all this trip really did was hit the pause button.”…

In the wake of the Lieberman debacle, one source with knowledge says that the President even made New Jersey Gov. Chris Christie, with whom he still chats, an offhand, polite, non-offer for the top FBI job, saying something like so-you-don’t-want-it-right? Christie reportedly demurred, listing the reasons why it wouldn’t work — among them that neither person needed the hassle it would cause. In a way, it was pure Trump — the President flattering the man, whom he once fired but still consults.