Scott Adams (the guy who writes Dilbert) has written a lot about Trump in his blog. Adams, who always struck me as a bit creepy, studies hypnosis and manipulation as a hobby, and says Trump is a master at this (he calls him a wizard). A lot of the things he says that sound like gaffes or random shooting off of his mouth are actually well crafted. He predicted Trump would win this thing last summer.
The video at the top of this thread is a good example of how a good hypnotist/spellbinder lets the listener fill in blanks. When Trump is talking about terrorism or ISIS or something notice how in the video he repeats, "We have a problem, we have a problem, we have to get at the bottom of the problem. We can't solve the problem until we know what's the problem..." Etc. your average American nationalist can fill in the blank with the problem being immigrants or the violent nature or Islam or something. But even someone like me kind find himself nodding thinking that the problem is western imperialism or the U.S. bombing those countries and funding false flag groups.
In fact, I found myself nodding when he opened an attract on Hillary's weakest point, her warmongering. He actually said that the world would be better off if Ghaddafi and Saddam Hussein were still in power, that we've destroyed those countries, let a mess and made everything worse. It's scary that he's the only candidate that's said this.