I’m not sure if his statement is some sort of back door endorsement, or idle musing.

“The differences between Sen. Clinton (D-N.Y.) and myself are much more dramatic than the differences between Sen. Obama and myself,” Edwards told reporters after receiving the endorsement of the progressive group Caucus for Priorities, which seeks a reallocation of defense dollars into social programs.

I think that there is a real “anyone but Hillary” Caucus among liberal activists, and it will be interesting to see what happens if Hillary loses in Iowa.