Former I.C.E. director Tom Homan chosen to be Trump’s “border czar.” While child of Santa Monica and immigration hardliner Stephen Miller will become the new deputy chief of policy. Jean Guerrero is the author of the book “Hatemonger: Stephen Miller,

The cast of characters surrounding Donald Trump has changed frequently over the years. One person who has remained at the president-elect's side throughout: Stephen Miller, best known for his fierce anti-immigration views.