I've said it before but if they do a Trump stand-in it will be Ar-Pharazôn the Golden: An aging, proud, nationalistic and warlike man who leads an insurrection the legitimate rulership of Númenor that was going to move it back to being less xenophobic and imperialist. He later becomes a puppet to Sauron and leads his country to ruin. Only the members of the non-bigoted minority survive this cataclysm and later defeat Sauron by bringing all the races together to bring him down.
The opportunity is too juicy for any liberal writer to pass up.