Trump has Don King there?
Not that I know of. CNN was speculating this morning, during a segment with the head of the debate commission or some such, Crooked's plan to put Mark Cuban in the front row. Speculation ensued. If Crooked puts Cuban there, Trump might retaliate by putting Don King there.
So, the general subject of which "distractors" each campaign was going to put in the front row was a topic of discussion, and use of Don King was (at least at that point) entirely a fantasy of the press.