Republican operatives are planning an intervention to help Donald Trump stay on message and stop the bleeding of his continuous outbursts showing that he is a danger to the office of the presidency, and I believe, a danger to our democracy.
In this intervention, the best thing they could really do is to train Trump to act presidential, to stop saying things that reveal who he really is. But that is the danger. They can only try, and the best they can do is to help him hide the fact that has a serious personality disorder that would be a danger to the country. If they succeed and hiding that from the American People, he might improve his chances of winning. But once (if) he wins, the true Donald Trump will try to run this country.
This would mean the end of the United States of America as we know it.