The last episode of Real Time was really on point. The debates are soooo mild compared to what a presidential debate will be like. You need to be prepared to be on stage with someone who will be insulting you to your face, racially or because your old, or poor, or a woman... And he'll do it without blinking an eye... And his supporters will love him for it (because liberals are sub-human to them). It wont be enough to stand there in those moments and smirk and roll your eyes. And it wont work to take the high ground or lecture him on his inappropriateness. You're going to be on live tv being bullied, straight up. If you look to the moderators for help you'll have lost. If you try to ignore it he'll keep going and you'll have lost. You basically need someone who is legitimately thin skinned and will let themselves get angry and react... and will go over and kick his podium over, decoum be damned. If they stand there and are. Willin to be insulted without doing anything about it, they'll lose.
Imo no dem is up to this challenge, and i dont want to see a debate get violent or spark violence, so they should simply refuse to debate Trump.