He should get sane non swamp non senile old fool scientists and doctors to participate.
For the president’s consideration, he might wish to not be looking down at his notes while talking, just talk the facts including what his role is compared to the governors roles, get support from the doctors and his economic advisors and not get into fights with the press. And he might wish to keep the press briefing short.
https://youtu.be/4QxlvqiaYCM