Richard Hofstadter

The paranoid spokesman sees the fate of conspiracy in apocalyptic terms—he traffics in the birth and death of whole worlds, whole political orders, whole systems of human values. He is always manning the barricades of civilization. He constantly lives at a turning point. Like religious millenialists he expresses the anxiety of those who are living through the last days and he is sometimes disposed to set a date fort the apocalypse.

— 1964, Richard Hofstadter
The Paranoid Style in American Politics