Stephen Colbert took aim at a regular punching bag of his – Pennsylvania GOP Senate candidate Dr. Mehmet Oz – when he broke down the political race in the state on Thursday night’s “The Late Show.”After explaining the matchup on the Governor side of things, the “Late Show” host turned his attention to the fight between Democratic Lieutenant Governor John Fetterman who is facing off with Dr. Oz in the November election for senator.“Polls show Fetterman leading by double digits, which might be because Pennsylvanians want to have a Senator who is actually from Pennsylvania,” Colbert joked.“Dr.