He’s had him on more than once but not nearly as many times as say Roody Doody.
Sean doesn’t promote so-called second tier candidates because he doesn’t think they are viable...though he should. He thinks Roody Doody, FRed and Mitt are the only ones we should pay attention to.
Sean's whole show is based on entertainment and is rated by the number of people who tune in (even though the How to Hang Wallpaper show would get good numbers when placed to immediately follow Rush) and his guests are those who get the largest poll numbers - they draw the largest audiences. He would have Lyndon LaRouche if he got large poll numbers!