For years now, before anyone thought a person like Donald Trump could possibly lead a presidential primary, a small but respected niche of academic research has been laboring over a question, part political science and part psychology, that had captivated political scientists since the rise of the Nazis.
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How do people come to adopt, in such large numbers and so rapidly, extreme political views that seem to coincide with fear of minorities and with the desire for a strongman leader?
To answer that question, these theorists study what they call authoritarianism: not the dictators themselves, but rather the psychological profile of people who, under the right conditions, will desire certain kinds of extreme policies and will seek strongman leaders to implement them.