John Murtha Wins. Really, Western PA?

I'm at a loss on this one. John Murtha wins re-election despite calling his constituents racists and rednecks. That tells me something about his district, although I'm not sure which of the following that is:

1. They heard Murtha call them rednecks and racists and thought, "Hey, he really does understand us."
2. That while their status as rednecks and racists may be up in the air, their status as kind of thick is confirmed.
3. That they are so beholden to the Democratic party that they can have abuse heaped on them by a Democrat because "he's one of us."
4. They don't take Murtha all that seriously, which is disturbing considering he is their representative.

Maybe it is all of the above.