CNN's Carol Costello admitted on Wednesday that President Obama's staff "can be quite nasty" to deal with. Given Costello's propensity to be a bleeding-heart liberal, her admission is all the more striking. "I felt it first hand when I was, you know, reporting on the presidential race," Costello noted. "I mean President Obama's people can be quite nasty. They don't like you to say anything bad about their boss, and they're not afraid to use whatever means they have at hand to stop you from doing that, including threatening your job..." [Video at link]