The rise of American authoritarianism - Vox
"Hetherington and Weiler published a book about the effects of authoritarianism on American politics. Through a series of experiments and careful data analysis, they had come to a surprising conclusion: Much of the polarization dividing American politics was fueled not just by gerrymandering or money in politics or the other oft-cited variables, but by an unnoticed but surprisingly large electoral group — authoritarians. Their book concluded that the GOP, by positioning itself as the party of traditional values and law and order, had unknowingly attracted what would turn out to be a vast and previously bipartisan population of Americans with authoritarian tendencies...Trump, it turns out, is just the symptom. The rise of American authoritarianism is transforming the Republican Party and the dynamics of national politics, with profound consequences likely to extend well beyond this election.
Authoritarianism is the best predictor of liking Trump.