"Barack Obama cruised past a fading Hillary Rodham Clinton in the Wisconsin primary Tuesday night, gaining the upper hand in a Democratic presidential race for the ages. It was Obama's ninth straight victory over the past three weeks, and left the former first lady in desperate need of a comeback in a race she long commanded as front-runner.
He cut deeply into Clinton's political bedrock in Wisconsin, splitting the support of white women in Wisconsin almost evenly with the former first lady and running well among working class voters in the blue collar battleground, according to polling place interviews."
Barack Wins Wisconsin for 9th Straight Triumph. Obama Continues to Erode Clinton Base.