Maybe so, but it's difficult to see why he would lie to Bernstein about that. What would be his motivation? After all, he was once a Clintonista and - with rare exception - once a Clintonista, always a Clintonista. That's why they call it the Clinton crime family.
Well, Gergen plays both sides of the fence. And who knows but he might have a desire to stick it to her,,she probably makes people feel that way.
He has no medical/psychological background to be describing her as clinically depressed.
And as an employee of the President, it was hideous that he talked to Bernstein about this. Either he is just terminally disloyal and stupid or he had an agenda. Take your pick.