Having watched the Delaware debate last night, I instinctively was to agree, but here is a different idea which I prefer. Train the candidates to give ‘put down’ responses that do not create negative reactions in the audiences. Wolf Blitzer was an utter disgrace; perhaps he should have been asked why he was being so aggressive - not a complaint, just a question.
While it is a “hot-fix”, who the moderator is and his/her behavior should not be part of the debate. If it is, then the debate has lost its way.