I believe trump supporters have a mixture, of varying degrees, of the following 4 characteristics:

1. Low intelligence
2. low common sense.
3. Fearful manifasting in racism and bigotry
4. Have a over-riding agenda

For example, pence is mostly #3 and #4. He's obviously anti LGBTQ and is willing to ignore trumps failings so that he can help implement a far right judeocristiana agenda.

I would describe the "common" trump supportes as #2 and #3.

IMHO

I figure it has to do with the way they talk and act though I have heard some people claim it is their distinct lack of hygiene...
"Hold ma beer an watch dis"
Trumpanzee battle cry

Excellent, and I agree. I feel the same way. Anyone who supports Trump and especially, those who STILL defend him: I don’t have a word strong enough to express my contempt and scorn.

Because us liberals tend to be snooty intellectuals.......,

Could it be that the genetally are.

On a serious note, most Trump supporters I've met have a poor capacity for verifying the substance, or credentials of the sources they purport to use. They fail to be able to grasp the implications of the absurdities they espouse. They grab on to the most absurd conspiracies that have little capability of being true. They think that brutality and offish behavior implies strenght of character. They are willing to sacrifice their morals, values, and ethics for a few hyperthreats that have little chance of becoming true. Othrr than that I guess they are okay.

To the point!