Exhibit A, Darth Cheney

Anne Laurie on Balloon Juice:

[T]he Republican Party has not recently been stolen by a batch of half-witted bigots, xenophobes, authoritarians, and garden-variety grifters. They’ve had control of the GOP wheel for more than 40 years, at least since Nixon’s triumphant accession to the Oval Office with the help of many of these same fine Heritage Institute ‘statesmen’. They were bad people when they were interning during Watergate, they were bad people when they used Reagan as a figurehead to start the full-scale authoritarian takeover and banana-republic-style looting of our national treasury, and they remain Bad People in Charge even unto this very day.

It's just that the vicious racists who used to be Southern Democrats have joined their particular brand of reactionary wingnuttery to the GOP.