Dean earns it. We earn it.
Kos has an important post where he knocks down the sour-grape suggestions about Gore's endorsement of Dean. Check it out.
The simple truth is that Dean and the people who support him simply worked harder for this. Dean and his campaign have consistently out-hustled everyone in the field. He is lapping candidates who were considered front-runners nine months ago.
He is winning because he has earned it. Wouldn't it be nice to have a president we could say that about?