Because obviously having an unpopular mayor who supports drug legalisation as the face of the Democratic party is really going to appeal to middle America. Why not have go the whole hog and have Elliott Spitzer up on the podium as well?
In a more serious vein I would suggest (for the Dems)
Sen James Webb
Fmr Rep Harold Ford Jr
Sen Ken Salazar
Fmr Gov Mark Warner
Fmr Vice Pres. Al Gore
(for the GOP)
Fmr Rep Charlie Wilson (if possible)
Fmr Gov Mike Huckbaee (for the VP nominating speech)
Joe Lieberman (if he isn't on the ticket itself)
Michael Medved (if Lieberman is on the ticket)
Bill Kristol
Lynn Savage
