Face-reading AI will be able to detect your politics and IQ, professor says | Technology | The Guardian

This is probably because political views appear to be heritable, as research has shown, he said. That means political leanings are possibly linked to genetics or developmental factors, which could result in detectable facial differences.

Kosinski said previous studies have foundthat conservative politicians tend to be more attractive than liberals, possibly because good-looking people have more advantages and an easier time getting ahead in life.

https://www.theguardian.com/technology/2017/sep/12/artificial-intelligence-face-recognition-michal-kosinski