In “White Identity Politics,” Duke University political scientist Ashley E. Jardina argues that white racial grievances have a more powerful effect on political beliefs when white people perceive themselves as under threat. As Michael Tesler, a FiveThirtyEight contributor and professor of political science at the University of California, Irvine, wrote, that’s “one reason why Trump was so effective in his many appeals to the cultural, economic and physical threats that they were supposedly facing.”
 
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