"Derangement," like "paranoia," also has an exact meaning.
It isn't just about hating Bush, it's about developing bizarre ideas like a secret Lieberman blackmail scheme to try to explain what is basically just the Democratic leadership's incompetence and lack of any true direction.
It isn't that long a jump from there to the idea that voters in 2008 will have their brains invaded by secret signals from HAARP.
It isn't about political viewpoints. It's about being nuts.