"Let the fratricide begin!" said Dana Milbank in The Washington Post. Liberal filmmaker Michael Moore—on a visit to Washington to promote his new movie, Capitalism: A Love Story —delivered a "stark warning" to any congressional Democrats who oppose a government-run insurance plan as part of health-care legislation. "I and a lot of other people have every intention of removing you from Congress in the next election," Moore said.

"Moore himself is little more than a blowhard," said Doug Mataconis in Below the Beltway, but he's not the only liberal activist who feels that way. There's growing consternation on the Left as people "realize that Obama just might not deliver what they want when it comes to issues like health-care reform, gay marriage, gays in the military, and the war in Afghanistan."

Michael Moore might want to think hard about what happened the last time he decided "moderate Democrats had to be punished," said Froma Harrop in The Seattle Times. Moore acts like he's the "'protector' of the little guy"—but in 2000, Moore helped throw the election to George W. Bush by backing Ralph Nader, even though "the little guy needed Al Gore to become president." Forget Glenn Beck, liberals: Moore is the guy on TV you should worry about.