The question I really want to see asked at the next debate:
“Each of you represents a party with extremist elements. How would you each address the extremists of your own party (as you understand extremism)?”
And as a follow up:
“What do you each believe the other should have said but did not?”
And as a follow up to that:
“Based on what you just heard from your opponent, what additional things would you want to say to your own party’s extremists?”