Behind Obama's Wave of Victories: The More They Know Him...

In a race where Clinton seemed to have every advantage, why has Barack Obama now won eight primaries and caucuses in a row? If you look at the rhythm of the campaign, this is the first point where most of America's voters have a chance to consider him as a candidate with a serious chance of victory, and to genuinely engage his message. Democrats passionately want a candidate they can believe in, but also one who can win--and reverse the Republican disasters.