POTUS must ask Bernie one question - what is it like to have a debate with an Alzheimer's patient! https://www.washingtonexaminer.com/opinion/coronavirus-overshadows-what-is-likely-the-last-democratic-primary-debate-of-2020 Only 2 people in one room with one moderator and 2 or 3 moderators in different locations.  Notice the proud pic of Biden trying to figure out how to elbow bump Bernie.