Polls, polls and more polls. The latest is this USA Today national poll. The usual caveats: national polls are useless as predicters of electoral success -- for that you have to look at the state-specific polls in key primary states. But it's a good bellwether of who's got the momentum, and doesn't. (July 27 results in parenthesis.)

Lieberman: 17 (20)
Gephardt: 14 (14)
Dean: 14 (10)
No Opinion: 12 (13)
Kerry: 12 (16)
Edwards: 6 (6)
None: 6 (3)
Braun: 5 (5)
Graham: 5 (5)
Sharpton: 4 (5)
Kucinich: 2 (2)