A new Public Policy Polling survey in Pennsylvania finds Sen. Barack Obama has taken the lead over Sen. Hillary Clinton, 45% to 43%, a remarkable
turnaround after trailing by 26 points just two and a half weeks ago.
"Obama's steep rise could be a reflection of a growing sense among
Democratic voters that a continued divisive nomination process will
hurt the party's chances of defeating John McCain this fall. An Obama
upset in Pennsylvania would be virtually certain to force Clinton out
of the race."