Trump vs. the dirty donors at the debate kind of reminds you of John Wayne charging at a gang of dirty thugs who were facing him in a showdown, in "True Grit". (See brief "video clip" link of that scene below.)
"True Grit" Movie Clip
(Duke's language warning...)
“Fill your hands you son of a bitch!”
Saw that movie in the theater with my grandmother. She loved The Duke.