Obama takes 2-point lead in Pennsylvania
PPP poll shows him ahead by 45-43, trails 49-38 among white voters A poll out today for Public Policy Polling in Pennsylvania shows Obama now leading in a state where Clinton has been enjoying comfortable leads. As ever though, the question is how reliable PPP is as a pollster, and whether this is a reliable indicator or should be taken with a pinch of salt. Obama is currently available at 3.1 to win the Keystone State on 22 April, so…