1) He might be on three different topics at once. Each topic involving several different folks. He'll switch from topic to topic in one breath using 15 pronouns.
2) His use of English grammar is pathetic.
3) He never stops talking about his book, or his guests' books.
4) He's a Rush parrot
He does serve a purpose in confronting liberals and occasionally converting them to common sense conservatism.
Hey Sean, take this test.
http://www.okcupid.com/tests/take?testid=14457200288064322170