Stewart, appearing on the debate show Friday, angered Carlson by saying "Crossfire" is "partisan hackery" that does little to advance the cause of democracy.

And that was the mild stuff.

"You have a responsibility to the public discourse, and you fail miserably," Stewart said.

Responded Carlson: "You need to get a job at a journalism school, I think."

"You need to go to one," Stewart shot back.

Carlson complained that for a comedian, Stewart wasn't being very funny.

"Come on," he said. "Be funny."

"No," Stewart said. "I'm not going to be your monkey."

Carlson chided Stewart for lobbing softball questions when Kerry appeared on "The Daily Show" last month.

Later, Carlson told Stewart he was "more fun" on his Comedy Central show, and Stewart called him a jerk — although he used a more vulgar term.

"I thought that he looked ridiculous," Carlson said in an interview Monday, "and I think the tape makes that clear."

Carlson said Stewart continued lecturing the "Crossfire" crew after the show went off the air. "I wasn't offended as much as I was unimpressed," he said.

Stewart wasn't talking about the confrontation on Monday, a spokesman said. Comedy

Central executive Tony Fox said there may be some regret over the vulgarity, but that Stewart has been a longtime critic of cable news networks and their political-argument shows.

The comedian hasn't gone out of his way to endorse Kerry. In a public forum last week in New York, he was asked who he would vote for, and he said he'd back the Democrat.

Carlson noted that many of the great comedians kept their political opinions to themselves, not for fear of offending anyone but because it could hurt their art.

"You're selling out," he said. "If you are a satirist or an acute social observer, and he is, and all of a sudden you suspend disbelief on someone or suck up rather than prod or poke someone, people will look at you and say, 'Even if I agree with you, I don't like it,' " he said.

Fox said "The Daily Show" poked fun at people in power, regardless of their party. Most people who watch Stewart are aware that he leans to the left politically.