[abendy]

"Moreover, it appears that the relationships between the dark side of human personality and right-wing political orientation and extremism, respectively, are relatively independent from each other. That is, that the endorsement of extreme political orientations is associated with the dark side of human personality is not a consequence of voters scoring high in the Dark Tetrad being more politically right-leaning."[0]

[0]https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5680983/

This is also one of the references for this study.