I personally think that in 2004 election cycle when the democrats thought they had a legit shot and a birthright to beat Bush that this changed. The democrats were doing debates (almost all about gay marraige) 18 months before! And the liberal MSM ate it up becuase they all think alike and could not wait to sponsor debates with Al Sharpton and Howard Dean.
Also too the 2004 election cycle the DNC moved up all their primaries, basically front loaded them, so that there would not have a lengthy primary fight and just coronate a winner. Dims believe that tough primaries make them lose elections, not their $hitty ideas. Because of the front loading process, advantage would go to to person with the most money, which people like Kerry.
I'm still trying to figure out if the Dems REALLY want Hillary or not. I know they want Bill, and probably think she's the only way they can get him. But I think they'd LOVE to nominate Obama, except he's so stupid and says such moronic things.