My compliments to the Obama campaign. I never in my wildest dreams believed he could take these people on and defeat them. Brilliant campaign. It's over.
You have to remember that there has always been a very strong anti-Clinton segment among Democratic primary voters. I'd estimate that segment around 50%. Early on Obama, Edwards and Richardson were splitting the anti-Hillary vote and after Richardson and Edwards dropped out that segment coalesced around Obama. And then Obama started getting a good amount of soft Clinton supporters to switch over once they saw how strong his campaign was.
And another truth is that Obama is just an extremely good candidate, very sincere and very charismatic. The best public speaker of any presidential candidate of our lifetimes.