Jeff Zeleny is live-blogging the drama at the the NYT's Caucus blog:
The all-night congressional debate on the Iraq war is under way, with Democrats and Republicans lining up to take their turns speaking on the Senate floor.
The boxes of pizza have been delivered. The cots have been dusted off. And the sergeant-at-arms was standing by, ready to fetch any senator who did not arrive in the chamber when the buzzer sounded for a late-night quorum call.