Remember that a good bit of disapproval is of "the other guy". It's very easy to disapprove of congress as a whole, but continue to vote in your own incumbent

Remember that a good bit of disapproval is of "the other guy". It's very easy to disapprove of congress as a whole, but continue to vote in your own incumbent because the bacon they bring back is for /you/. The bacon everyone else brings back is "wasteful".