From Donald Trump's perspective, what was the biggest mistake of his first term? Appointing folks who turned out to be establishmentarians might be a strong candidate, according to Susan Glasser, staff writer at The New Yorker and co-author of "The Divider: Trump in the White House, 2017-2021."

Based on over 300 interviews with people intimately familiar with Trump's first experience in the White House, she expects a second term will differ in tone and tactics. One source even likened it to the infamous scene in 1993's "Jurassic Park" in which velociraptors learn to open doors.