Best guess: Why is he hiding at camp David Medical? Strategy?

[chowmama]

2. I'm betting medical, too

His visits to Walter Reed are getting too much attention, so they're going to need to find another way to take care of him out of the public eye.

Shady Pants is definitely trying to move into the presidential role, a role for which he is massively unequipped. My main worry about him during the last year of two of this presidential term is that he's less distractible than Trump. You could always shift the Malignant Moron's attention by taking out your keys and jingling them. Look, gold (paint)! Greenland! A celebrity didn't like you! Here's somebody that made up a medal/prize to award you! Another building you can destroy and another monstrosity you can build and put your name on!

Shady will be able to focus on cracking down and consolidating power. He won't be able to keep it because everybody, bar none, hates him, but it might be a rough couple of years.