I've arrived at the Democratic Caucus for Des Moines Precinct #19, at Monroe Elementary School, in the Beaverdale neighborhood of the city, with my friend Mike Klosterman, a registered voter here. The room is already overpacked, and an adjoining precinct meeting in the same school has 500 people still in line. Everyone seems to be blown away by the attendance.

By total coincidence, this precinct is being worked by Jackie Norris, Obama's state director (along with her husband, John, who ran Kerry's 2004 Caucus campaign). But there are plenty of Edwards and HRC staffers here as well.

They're doing the preliminary announcements right now, but people are still outside the door signing in. It's pretty cool.