Pause for a moment, and really let this sink in. The President of the United States this morning declared he's not mentally unstable, and in fact is a genius: "Actually, throughout my life, my two greatest assets have been mental stability and being, like, really smart. ... I think that would qualify as not smart, but genius... and a very stable genius at that!"
Nothing like this has ever been uttered in public by a sitting president in the existence of our nation. Nothing. And it puts us in uncharted waters: