I just had a conversation about this with someone here, about the fact that while in purely cynical terms it makes sense that safe seat Dems are less concerned about the jobs issue than they should be, it's the Blue Dogs who tend to be in less safe seats and who are actually standing in the way of legislation which make might voters a bit less cranky in November.
Never fear. If these people lose in November, they will be comforted by the fact that it wasn't their fault. It'll have nothing to do with the fact that all of their constituents are unemployed, and instead will be because Obama increased the deficit.