I am totally confident that if, in addition to having a 'Like' button, Facebook offered a one-click way to scratch the eyes out of someone else's Facebook photo, some of my followers would spend all day blinding their opponents' profile pics.
Think partisan name-calling has reached new lows? Actually, mudslinging is a tradition as old as the republic, right up there with baseball and apple pie. The Founding Fathers were no strangers to the well-aimed political slur.
If you run for office, you're pretty much completely exposed. Yet every election, people line up to take the public manhandling. And the simple fact is we need these people -- need them there on the ballot, need some of them as our leaders.