Poll: Clinton still leads in Pennsylvania

PITTSBURGH, April 20 (UPI) -- Democratic presidential hopeful Hillary Clinton has a slim lead over rival Barack Obama in Pennsylvania going into the state's primary Tuesday, a poll shows.

The Pittsburgh Post-Gazette reported Sunday that Clinton has a five-point lead over Obama, 48 percent to 43 percent, according to a poll conducted by Mason-Dixon Polling & Research.

Clinton's lead was just outside the margin of error of the survey, the newspaper said.

Pundits say if Clinton loses to Obama in the Keystone State her hopes of somehow winning the delegates necessary to clinch the Democratic presidential nomination would be all but dashed given Obama's lead in the race for the 2,025 delegates needed for the nomination.

New Jersey Gov. Jon Corzine, a Clinton supporter, told MSNBC that a loss in Pennsylvania would be a "door-closer" for Clinton's candidacy.

The poll, conducted Thursday and Friday, came after Clinton and Obama traded barbs Wednesday at a debate in Philadelphia. The survey's sample size was not reported.