Courtesy of Stephen Colbert, but Colbert the person, not the character that he plays on his show.

He was at a reunion of Second City comedians, and they had a panel on comedy and politics:

As for Glenn Beck, the panel discussed the challenge of maintaining a separation between reality and satire when so many TV pundits are simply, premeditatedly over-the-top.

“I said, ‘Let’s start doing some Glenn Beck stuff but in praise of Glenn Beck,'” said Colbert. “But every time we do one, he will have done something dumber. He raised the stupid bar and now it’s nearly inapproachable.”

(emphasis mine)