Early this morning, Althouse highlighted a John Judis analysis of last night's Pennsylvania results.
Judis' article analyzes the demographics of the Pennsylvania results. He confirms the problems the Democrats are facing which led me to ponder the possibility of a Clinton center-left third party campaign.
The demographics in Pennsylvania are similar to those which led Lieberman to run as a third party candidate after losing to the netroots' chosen candidate.
Whether this translates to a viable national approach remains to be seen. The question is how the Red Witch and her supporters view the matter.