It's official:

The more questionable your mental health, the more likely you are to be a Bush supporter.

Thanks to Tom Tomorrow and the Carpetbagger.

Apparently, it’s not an entirely new phenomenon — Lohse also noted a 1977 study by Frumkin & Ibrahim found psychiatric patients preferred Nixon over McGovern in the 1972 election...

...“Bush supporters had significantly less knowledge about current issues, government and politics than those who supported Kerry,” the study says.

Shocker.