TIME's Mark Halperin spoke with Sirius Radio's Bill Geddie yesterday on the importance of John Edwards' endorsement:

MARK HALPERIN: .He [John Edwards] comes with some delegates who he won before he dropped out and also everyday matters and his endorsement would be a big story for at least a day. And, I'll tell you one other reason I think it matters: Obama, the big rap on him is he is experienced enough, the big rap on her [Clinton], would she change enough. Edwards watched the two of them more closely than anybody in the country really. When he picks one of them, assuming he does, and I think at this point he will, he'll send that message whether it's explicit or not. If he picks Obama, the message is: Clinton doesn't represent change. If he picks.Clinton, the message is Obama is not ready.

BILL GEDDIE: Haven't we heard all along that he doesn't like her, haven't we heard this?

MARK HALPERIN: Yes, that's right. And I can tell you, he's really skeptical of her ability to be the kind of president he wants. But, he kinda thinks Obama is..he thinks Obama is kind of a pussy.He has real questions about Obama's toughness, his readiness for the office.he has real doubts about Obama, not just as a president, but as a general election candidate.