Sullivan nails it...

I hate to be a wet blanket but Andrew Sullivan makes some good points. And he's a big fan of Barack Obama.

[In the Pennsylvania primary] Obama lost every cohort over 40; Clinton lost every cohort under 40. Race also affects the generations in turn: 67 percent of whites over 60 voted for Clinton - a massive 24 point advantage. Among the younger generation, there is much less racial polarization: under 30, whites split evenly. This is a fascinating result. It appears to me as the future struggling to overcome the past. On the process, I stick to my view that she needed double digits to have reason to stay in. Right now, she doesn't have it. But she won't leave. She will never leave. Ceding to someone younger is unthinkable to her. It's a form of death for her.

But here's what she does have: total shamelessness, and an absolute belief that she is the rightful nominee. Shamelessness: the appropriation of the message and even the words of her opponent; the portrayal of one of the most privileged and advantaged candidates in memory as an insurgent underdog; the eager embrace of the tactics - and message! - of the Rove right if it could help in any way; the picture of a candidate who saw a 20 - 25 point lead dissipate into single figures as a candidate for momentum. What sustains her is this deep, deep sense of entitlement and an absolute refusal to let the next generation take over. She will take this to the last day of the convention if necessary.

If Obama thinks he has a right to actually be nominated by the Clinton Democrats because he has won more votes, more states and more delegates, he is sadly mistaken. They will never let such a person win without a death struggle. And that is where the Democrats are now headed.

Add this to Tom Watson's points and Obama's future starts to look grim.