I've been re-reading the first Harry Potter book, "Sorcerer's Stone," and I was struck anew by how well Quirrell's standout line at the end (about what he learned from Voldemort) reflects what's happened to the Republican party under Bush.
"There is no good and evil, only power, and those too weak to seek it."
That sums these people up in a nutshell. Vote suppression? Disappearing people? But of course!