Probably domestic issues, healthcare and economic (which isn't going away). They are each supposed to tell us exactly what they propose. I hope we won't be disappointed.
I can't wait to watch because the moderator will try to press both for answers and have them question each other. Every one noticed when the candidates evaded answers (politicians are good at that).
Hope this will be a great show. I'll have my popcorn ready before I sit down in front of the TV.