Obama has race as an issue, other than that, he has nothing. Edwards has... nothing.
It's inevitable that his Brecky face will slowly sink below the waves. I just hope it happens slow, so that he swallows lots of seawater on his way down.
It is important that Edwards stay in the race for as long as possible. The more primaries that he contests, the further left he will pull the Clinton platform. She can't run a BS centrist campaign with outwardly leftist candidates in contention.