Haven't seen the town hall. Pretty sure I won't. Looking a the back and forth on this thread I guess I'd say the following:

Trump as the front runner to be the Republican candidate is newsworthy.

Not talking about Trump and how bad trump is because the depths of his toxicity have been discussed before could be one course of action for the world.

Personally I think he's got at least a 50/50 shot at winning - and I think NOT talking about how bad he is or the lies he continues to spew moving forward only increases the chances he gets elected - so I'd say it's fair game and more than reasonable to highlight an discuss new events and milestones etc. Once he's eliminated from being a candidate I'd be happy never to talk about him ever again.