We all know the type of bottom-of-barrel dredge that fills his rallies: alcoholic deadbeats, meth heads, pridefully illiterate let alone uneducated. Racists, bigots… Someone who ate one too many lead paint chips or sniffed that leaded gasoline.
Interestingly, studies by neuroscientists see remarkable distinguishing factors between liberals and conservstives. Conservatives have a larger amygdala, having a heightened sensitivity to disgust. They have a smaller cingulate cortex compared to liberals, reducing pattern recognition and maybe more importantly pattern dissonance.