Re: Trump leads where others follow
Johnson is smart, but not as smart as he thinks he is.
Trump is way smarter than his enemies think (which is faint praise, but still). It suits him to let them think he's dumb, and that's why he's president today. But if he seems dumb to you, that's just because you haven't worked out what he's doing yet.
(Hint: a big part of it is "riling up his base" and, just as importantly, "riling up the Democratic base". Because the more riled they get, the more bitter the primary battle will be, and the weaker the candidate that will emerge from it. Trump's dream is of a Democratic nominee whom barely half of their own party will vote for, and he's well on the way to achieving that now.)