Glenn Beck: Dumb or lying?

Glenn Beck promotes the ludicrous lie that Nancy Pelosi is going to try to ban Fox News from “covering Congress”:

If you follow the link, you'll see why this is an obvious lie: in the made-up quote attributed to Pelosi, she talks about “the efficacy of single payer health insurance.” Single-payer, of course, is not on the table.

So which is it: Is Glenn Beck dumb enough to believe the quote was true, or dishonest enough to hype it knowing it wasn't? Or both?