I'm mostly in agreement with that statement as good debate advice for the Donald. I think he's already solidified support with the people who accept or even like the image of an angry Trump lashing out at critics. Now if he is capable of controlling that anger while retaining his ability to cut an opponent's balls off with sharp, witty responses he could prosper more with the voters who might see his red-faced anger as childish school-yard pique. Problem is, I'm a ways away from Trump's age but old enough to realize teaching an old dog new tricks isn't impossible but not easy either. And in his case his advisors probably have a hell of a time trying to get that message of anger management through his arrogance and gloriously developed ego, even for a couple of hours on special occasions.