The power of the presidency is so vast that it is probably a good thing, in retrospect, that only a very few people in this country understood the gravity of Richard Nixon’s mental condition during his last year in the White House. There were moments in that year when even his closest friends and advisers were convinced that the president of the United States was so crazy with rage and booze and suicidal despair that he was only two martinis away from losing his grip entirely and suddenly locking himself in his office long enough to make that single telephone call that would have launched enough missiles and bombers to blow the whole world off its axis or at least kill 100 million people.

. . . But it was mainly a matter of luck that Nixon’s mental disintegration was so obvious and so crippling that by the time he came face to face with his final option, he was no longer able to even recognize it. When the going got tough, the politician who worshiped toughness above all else turned into a whimpering, gin-soaked vegetable… But it is still worth wondering how long it would have taken Haig and Kissinger to convince all those SAC generals out in Omaha to disregard a Doomsday phone call from the president of the United States because a handful of civilians in the White House said he was crazy.

Ah… but we are wandering off into wild speculation again, so let’s chop it off right here. We were talking about the vast powers of the presidency and all the treacherous currents surrounding it.

—- Hunter S Thompson, Fear and Loathing on the Campaign Trail ’76, Rolling Stone, June 3, 1976