The deal with Nixon is that you got a peek behind the curtain in a way you didn't with other Presidents. I think most anyone that has held the office has had similar craziness run through their brain at some point in time, but it was never recorded for public consumption.

I think Lyndon Johnson would be the Democrat version of Nixon in terms of just how bat shit insane he was. He'd strut around naked on Air Force One, he'd expect secretaries to take dictation while he had an enema or used the toilet, he was a racist, he was just fucking nuts man.