funny story. I applied for a job as a political intern for a local Republican governor. I'm a democrat but this was the only political job that actually paid. I was hired but my guy asked me why I had a John Edwards pin as my Facebook pic (I keep all my stuff private, but the pic is publically viewable)
I denied it saying that it was another First Name, Last Name (my name is pretty common). Still he said he wouldn't let me go for being part of another political party but it wouldn't look to good in front of my very consevative co-workers.
Later I deleted everything controversial from my facebook. My facebook is pretty vanilla now.