We see that here in Indiana in a big way. Dick Lugar, who made some real accomplishments by working with the Democrats, was unceremoniously ousted in the Republican primary. The guy running now is Richard Mourdock, a Tea Party favorite who has said publicly that he has no intention of working with the Democrats on anything, and is staunchly anti-compromise. It's a campaign slogan of his. And he might win.
It's sad, really.