Arnold Schwarzenegger ran as a Republican and then governed like a Democrat.
Both Bushes were Republicans but did some liberal things
Bill Clinton is a Democrat but did some conservative things.
Sandra Day O'Conner was expected to judge as a conservative and we all know how that turned out.
Gabrielle Giffords is a Democrat but pissed off both sides of the aisle because she didn't vote straight party.
Jared Loughner apparently didn't watch TV news or listen to talk radio. It's been claimed that he was stalking Giffords before anyone in the continental US knew who Sarah Palin was.
And critics of the "vitriol" coming from the right have forgotten the filth that came from the left throughout the Bush administration.
The left sees every terrorist act committed by a Muslim as an isolated incident but when one Democrat is shot by one Republican it proves the party is violent?