Even outside the Northeast, there are certain white rural areas that are Democratic. For instance, the WI/IA border, the area around Tell City IN, or Elliott County KY, or maybe some counties southwest of St. Louis to an extent. I remember we had a thread about this a while ago, and I think someone (maybe it was me) said talk radio signals are very weak in those areas. These areas get radio from nearby cities, but the signals from the right-wing talk stations in the cities just don't happen to reach those areas.
For this same reason, there's actually some precincts in East Texas where Obama got a slim majority or >40% of the white vote. They happen to be in those slivers of land where Houston and Metroplex radio signals don't reach.
