You're absolutely tight ... and I'm quite sure Trump knows he wouldn't have the power but he also knows the answer to your question, "... how many voters understand that?" Not a lot.
1. I'd be drinking a lot too if I lived down there. 2. You give credit to Tromp [sic] for a mentality above that of a cricket. (Sorry, crickets.) I suspect he's never read and/or understood the Constitution. 3. Apparently most of the voters are morons (current company excepted), given the outcomes of the caucuses and primaries.