So if Bush gets caught with his pants down in the Oval Office with some   young lady with strange tastes in men, that's entirely his business, and it'd be quite wrong to go after him for it?

I somehow doubt if it'd work out like that. And I somehow doubt if too many of the Clinton apologists would actually stick to that principle in such circumstances. On the other hand I can imagine a fair number on the other side who'd suddenly decide that personal failings shouldn't be dragged into the political arena.

My, wouldn't it be fun though...