If the DNC chose to enforce the rules they started with before this whole thing started, this would be over.  
You can only indulge the Clintons so much before you start sabotaging the Democratic party.  And since it's another party's job to do just that, our own efforts would be redundant.  
I don't buy that a longer race is good for the party. Especially if one of the campaigns is doing more harm than good.  
I don't buy that Obama can't win the big states necessary to beat the Republicans.  
The Republicans have spent the last eight years beating themselves into a minority.  Their party has a weaker foundation now than it has in recent history.  What leg can they stand on?  Stay the course with the  bloodletting in the middle east?  Stay the course with a devastating financial crisis?  Stay the course with tax cuts for the super rich?  Stay the course with oil profiteering?  
And Karl Rove?  Architect of the Republican minority?
One thing more destructive than taking a page right out of the Karl Rove playbook is the administration ripping a page out of the constitution.
I have faith that enough Americans are enraged about the latter to dismiss the former.