It is the job of the candidates to vet each other. It is the job of the moderators to provide a neutral forum for them to do so.
If you want to engage the candidates during the debates, then get on the stage and run for President yourselves.
Otherwise, just facilitate the discussion between the candidates and stay out of the conversation. You haven't earned the right to participate in the discussion, especially.from the safety of behind the desk.
-PJ
“It is the job of the candidates to vet each other. It is the job of the moderators to provide a neutral forum for them to do so. “
That kind of rational thought will get you in serious trouble sir!