The "O'Reilly a liar" part evidently refers to O'Reilly claiming to have seen the evidence proving Zero's alleged birth in Hawaii. When pressed, BOR admitted that he hadn't seen it, but his staff had. The story deteriorated from there.
Glenn Beck, OTOH, calls birthers "morons". Of course, Beck thinks that Mitt Romney is "the guy who's gonna save America".
He has never supported a Republican candidate for anything, no matter who the opponent was. He admits it. He is an Obama man, lock, stock, and barrel. Anyone watching his laughingly sychophantic interview of the Prepostor can see that!
BOR himself is a marketing ploy, the purpose of which is to keep white, Catholic men, 35-65, voting Democrat. Perhaps he does it well enough to earn the enormous sums he is paid. "Fair and balanced," is, though, a brilliant marketing trick for BOR, which I am willing to bet is not his idea, because he is extremely ignorant, and perhaps even a bit stupid.
Either way, the man is a Democrat. Ask him. Tim Russert, without the brain.