First Joe the Plumber becomes Joe the Comedian; now Karl Rove and Rush Limbaugh will be guest starring on Family Guy? Have conservatives found their sense of humor? Explaining how the unlikely alliance came to be, creator Seth MacFarlane said that his show tends to be liberal "because it is written by liberals," so he decided he should give conservatives some time in the spotlight. The plot of the episode involves Brian, the family dog, becoming a Republican because he no longer has anything to complain about. Limbaugh reportedly sings a musical number. As usual, MacFarlane sounded as if he was looking forward to controversy. "I'm sure the reaction from some will be 'you monsters, how could you have Karl Rove on your show?'" MacFarlane said.