As far as I'm aware of, the border wall is Trump's main selling point. I'm unsure of the history on that project, but it seems that that's being done, but it's no "Great Wall of China".
Other than that, his main selling point is "bringing lost jobs back to America" - I'm curious what or how he plans to do that, and what that would entail?
Other than that, most of it seems to just be "noise" or infatuation with his persona, or "noise" from the loudmouths on the left about his "pussy comments" and so forth.