Nothing but critical questions and dumb unfair vicious attacks against Trump. I went to see what was going on in Biden's town hall to compare, and they were basically praising him and telling him how they were sure a Biden administration would 'follow the science', and the question for Biden was basically 'explain how much better you would be compared to Trump'.
The worst part is, we all knew this was going to happen. I sometimes wonder why the Trump campaign even does these things at all.
I still say it is better for Trump to take tuff even unfair questions and handle them well, then for Biden to fumble a bunch of softball questions.