Generally speaking, people as a species, are insane. Who was that guy in Washington D.C. (Marion Barry?) who got re-elected as mayor (or something) even after caught red handed on tape taking part in a dope deal?
Hell, even after all the shenanigans, Bill Clinton got re-elected.
Either we are all just insane voting for the people we do, or are selections are so manipulated that we simply can only try to choose the least worst of the offerings......