I always wondered how people with such bad ratings kept being reelected. Here in Canada they put their big names in specific counties they know will always vote the same party, so for example if my PM is liberal he is also a REP and the party chose him a specfic county that will always vote liberal, to make sure he keeps his county. They put their top establishment guys in these always liberal counties like pions on a chessboard. That's how it works.

But in the US... you had machines switching votes.