Since you asked.

Nora O'Donnell…

"If people want change so much, why isn't Obama winning this outright?"

Since you asked, because Barack Obama doesn't have a patent on change. Because even among people anxious for change, there are differences on how to change, how fast to change, how much to change and what, finally, to change into. Because the status quo is on the other side of the partisan divide and Hillary Clinton is change, change equal to Obama quantitatively, however different qualitatively.

That's why.

Hat tip to MyDD.