Um the Republican's don't choose the guest, the Producers of the show decide who is the guest. That is why you only see a good forceful Republican on when they are in opposition to the President and the Republican Leadership on the issue of the day, they are a registered candidate for National Office, or the line up is slanted to make sure the Republican is double or tripled teamed by Leftists guests who will monopolize the conversation and run out the clock. The Sunday shows are no longer "News" programs, they are an illegal contribution in kind to the Democrat Party.
Great comments