Well apparently we now have more current confirmation (Hofstader's analysis was from the early to mid-60s).
It seems that there's a relationship between the level of one's psychosis and his/her support for President Bush (hint: it's not inverse).
I know, try to act surprised.
In fact, this isn't just speculation or hyperbole (not that there's anything wrong with that), but an actual psychological study conducted in Connecticut (wonder if they tested Lieberman/Shays voters?).
My favorite quote: "Lohse, a social work master's student at Southern Connecticut State University, says he has proven what many progressives have probably suspected for years: a direct link between mental illness and support for President Bush."