This page dates back to 2018. I have deleted most of it but the bits that still work are as follows.
The null hypothesis is that Trump is no different from what normally happens. In Identity Crisis, John Sides, Lynn Vavreck and Michael Tesler argue that Trump is not surprising but rather in accordance with ‘fundamentals’.
https://press.princeton.edu/titles/11084.html
Hall Gardner’s World War Trump. The Risks of America’s New Nationalism.
Review of World War Trump:
https://www.nyjournalofbooks.com/book-review/world-war-trump