This preview of a poll in John Murtha’s old district is pretty eye-opening:
Only 28% of voters in the district express support for it with 59% opposed. Even Democrats there support it by just a 43/39 margin. Obama’s overall approval rating in the district is 33%, with 57% of voters disapproving of him. It’s hard to imagine any Democrat winning an open seat this year where the President is that unpopular but it’s still a close race.
This was the only district that voted for John Kerry and John McCain.