Literally every character in The Americans.
If that's cheating, I was going to say Red Forman, considering his stance on snowflakes and wanting to make America great again but I just don't think he'd have the patience for Trump. Or modern politics at all for that matter. Less grabbing people by the pussy, more putting foots in their assholes. But that line of thinking trickled down to his son. Now obviously his friendship with Fez is going to make Eric think twice given that his friends are literally all he has going for him (I mean assuming Trump is running in the 70s, I'm sure Eric has goals and accomplishments now that he's pushing 60) but he does have that mentality that things should just be handed to him and has been known to throw a tantrum when things don't go his way.
Regardless Kelso definitely would, considering he is the kind of guy that would vote for someone who reminds him of himself and they share the same realm of intelligence and coherent thought. Speaking of Kelsos, Bob from Scrubs would be in the 'people in charge should do whatever they want regardless of the lives affected' voting mindset, The Todd would have doubled down after hearing about the harassment and the Janitor just wants to watch the world burn.
Wait, has Trump come down hard against drugs? Because if so, ignore this entire post past the first sentence.
Oh, Sheriff Hopper would have to be sick of invaders coming from down below by now and has contributed to closing the gate twice, which is the equivalent of building a wall in non-fantasy worlds, right? No, I guess that would just be closing an actual gate. Shut up.