Greg Naylor, field operations director for U.S. Rep. Chaka Fattah, said that there was no doubt Obama would take Philadelphia - but that he also had the potential to win Pennsylvania. Naylor is basing his prediction on the increased registration for the Democratic Party. The party has registered more than 50,000 new voters for the primary in the city alone and more than 100,000 for the state. The Obama campaign is given credit for most of the new registrations, which include those who, as I did, switched from no affiliation to Democratic to vote for Obama.