In the meantime, give him a chance to get his sea legs. He's not a professional politician and comes from a world where you don't need to parse your words, walk in eggshells and have every position run through a focus group.
I hope Trump does not ever get to that point but I imagine over time, he'll get a little more polished in that regard.
Usually with people like this...the more rope you give them they do eventually hang themselves.
If I were in a position to be advising any of the other candidates, I would advise them not to attack DT.
Trump’s big mouth is his biggest enemy.