If you look at the sociology of populism in the United States, it is tied most closely to population density, which... is correlated... to these types of cultural differences... to belief... in traditional cultural values, in family, in religion and the like, and conversely to... belief in immigration and diversity as strengths... This is the fundamental division that's taken hold of the United States. It has been augmented by technology because the internet has succeeded in... destroying every other source of authority that used to filter news and facts and information that... formed the basis of a democratic ability to have political discourse.