It's a pretty good film. The private equity wankstain (doing the shtick about champagne in the limo -- "'86 is the vintage to buy. If you can't afford '86 then buy '02. If you can't afford '02 then drink fuckin' beer") is so spot on that you couldn't honestly design a better caricature.
He's a fuckhead, and his core constituency is other fuckheads. He really has very little incentive to moderate the rhetoric that got him elected, since the more extreme he is the more they like it.