While I do not think McCain could win PA by those numbers, I think a good size win possible.
NO, pollster has caught what is happening in most reliable part of the democrat base after blacks. The whites over 40 are not voting or voting McCain in huge numbers. They talk about Bradley effect but they are oversampling dems in these polls by huge margins to cover up the drop of democrats not voting dem and are ignoring the undecideds that are too high this close to the election. Those undecided voters being in larger percentages in blue states than in red say it all.
Pollsters know exactly what is going on and are refusing to let the public know Obama is in huge trouble.