[In 2009], 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.
This trend had been accelerated in recent years by demographic and economic changes such as immigration, which "activated" authoritarian tendencies, leading many Americans to seek out a strongman leader who would preserve a status quo they feel is under threat and impose order on a world they perceive as increasingly alien.
These Americans with authoritarian views, they found, were sorting into the GOP, driving polarization. But they were also creating a divide within the party, at first latent, between traditional Republican voters and this group whose views were simultaneously less orthodox and, often, more extreme.
Over time, Hetherington and Weiler had predicted, that sorting would become more and more pronounced. And so it was all but inevitable that, eventually, authoritarians would gain enough power within the GOP to make themselves heard.
