The problem is, if you reward politicans regardless of behavior simply because of the letter (R) next to their name, what incentive is there for the party to put out better candidates? Or will things stay the same, as if nothing happened? Someone mentioned the primary, but then you are told that if you vote for the challenger he/she will be unelectable in the general, so stick with the incumbent.
I think such thinking can only work for so long before voters simply no longer believe the party line, and let the chips fall where they may. I don't think that we at that point yet, but the Republicans have to start listening to the dissatifaction among the base, and make changes accordingly, no matter what the outcome is on November 7.