R. Emmett Tyrrell, Jr.: Trump’s occasional over-the-top counterattacks are always provoked by an over-the-top attack. The Democrats always attack first. Moreover, it is the Democrats who have coarsened debate in this country. They have been campaigning on slurs and scurrilous language. Remember Beto’s use of the F word or Kamala’s or Kirsten’s and forget about Maxine’s or Ilhan’s X-rated usages. Donald Trump is saving our mother tongue from the barbarians.