Dems are walking a tightrope. They can see that Hillary has serious problems and is not well liked. She is terrible and weak as a candidate. But they dont want an ugly food fight between her and Biden.
I predict that Obama is trying to get the goods on her, then offer her immunity, if she gracefully steps aside. Watch for Hillary to cite health and family as she ends her campaign.
Good analysis. There's little doubt now that Obama is turning the screws.