To bisect the heart of the Democratic presidential contest, take the Chester exit of I-95 and wend your way to the Pennsylvania Turnpike. If Barack Obama has any chance of cultivating an upset on April 22, this 20-mile stretch is fertile land.
"It is, without question, right at the center of the fight for Pennsylvania," said Rep Joe Sestak, D-Pa., the retired admiral who represents this district and who has endorsed Obama's rival, Sen. Hillary Rodham Clinton. "How my district goes is how the state may go."
Clinton holds a lead in statewide polls. But Obama is strongly favored in Philadelphia and polls show him holding a slight lead in the arc of four increasingly Democratic counties around the city. Delaware County, the one which makes up most of Sestak's 7th congressional district, is his toughest with demographics that also suit Clinton and her blue collar appeal.