POLITICS
05/01/2008 05:12 am ET Updated May 25, 2011

Pennsylvania Primary Helps John McCain

For better or worse -- and many Democrats fear it is for worse -- the race goes on.

Senator Hillary Rodham Clinton defeated Senator Barack Obama in Pennsylvania on Tuesday by enough of a margin to continue a battle that Democrats increasingly believe is undermining their effort to unify the party and prepare for the general election against Senator John McCain.

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