A while back the heads of the Republican Party had a meeting with Donald Trump. They wanted him to agree that if he didn’t end up being the nominee he would support the nominee and not attempt a third party run.
I think this was the wrong deal to make. They should have made this deal instead: Trump drops out of the race. In return, if the Republican nominee wins the election they agree to appoint Trump as both Press Secretary and Secretary of State. This way he could make outlandish claims to the press (as Press Secretary) and then use his talent as a negotiator to make deals with other countries (as Secretary of State).