Hill and Obama: Turntables

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.http://www.nytimes.com/2008/04/23/us/politics/23assess.html?_r=1&hp=&oref=slogin&pagewanted=print