Arizona Democratic Senate candidate Richard Carmona struggled to draw a crowd in his hometown Sunday, forcing organizers to switch to a smaller venue.
In a Friday conference call, Sen. John McCain (R., Ariz.) continued to push back against an ad by Democratic Arizona Senate candidate Richard Carmona touting McCain’s endorsement of Carmona a decade ago. 
Several Democratic candidates in recent months have been hesitant to voice support for Senate Majority Leader Harry Reid (D., Nev.), who, if Democrats retain control of the Senate, must be reelected majority leader when Congress begins a new session next year. 
This year’s Democratic National Convention in Charlotte, N.C., has already encountered plenty of setbacks. Here are five prominent Democrats who won’t be attending this year’s DNC. 