It's typical of the way he speaks coming from a salesman and promoter background. He says a lot that can't be argued with because there's really nothing there to argue. He also has a confidence and structure around the words that allows people to read things into what he's saying. People supporting him will see him as saying what they believe and people against him will see him saying the opposite of what they believe. In reality, he didn't say anything of substance, but he managed to get both sides worked up. It's very fascinating to see both supporters and opposers get so emotional over things being said that have absolutely no substance. It's a great study in tribalism, group think, and general psychology.