The best gauge is his own words, and on that basis I can only presume that his supporters don’t understand simple English, don’t understand basic manners and propriety – really, discussing how large his “unnamed body part” is based on the size of his hands? – don’t care about his flip and generally disparaging, malicious and meaningless characterizations of his one-time opponents, don’t see through empty promises (“It’s gonna be great! You’re gonna love it!” – really? How, exactly? What will cause me to love whatever “it” is?) – or are so pissed off at everyone else who also makes empty, meaningless promises that it simply doesn’t even matter to them any more. And that’s the worst gauge of all, I’m afraid. (And the indicated one, because of course his supporters understand English, understand manners and propriety pretty well – because his support increases when he deliberately breaks those norms – enjoy his flip and disparaging remarks (because they make them, too, and his doing it out loud makes him seem like “one of them”), and completely see through empty promises and meaningless words – which is one of the bases for his support, I’m sure: they no longer care, because all politicians make promises that can’t be kept, but this one is at least “entertaining”).
People are indicating by the way they flock to this nutcase that they have essentially given up on any semblance of politics with meaning and serious intent to reach consensus, and want to elect a pile driver who will “get things done” – and they just expect him to do the right thing. Well, that’ll never happen.