It's already over, we should have a nominee by now?

http://www.huffingtonpost.com/zack-exley/the-dnc-needs-to-get-star_b_90749.html

I think this gent makes a valid point until you actually apply it to the current situation. I'm sure his theory would apply if you take away the health care issue, the war situation, and how the economy is dumping on itself.