and a lot of people will be watching to see what the guidance is coming from the federal administration on that. so, expect some news in that speech. potentially, on vaccines and what their plan is going forward. but very much, not where the white house expected to be in september. and of course, a lot of this is unknown. a lot of it is driven by the delta surge and this is having an effect on the economy, as well. with the president blaming that anemic jobs report from last week for the month of august on the delta variant. >> that's right. and will they make a move -- um -- you know, bolder move toward more federal mandates? we'll see. kaitlan, thanks a lot. -let let me bring in dr. eileen marty, professor of infectious disease at florida international university. and dr. lance van gundy, he works in an emergency room in iowa dealing with the surge in covid patients right now. good evening, to you both. and thank you for joining me. let me begin with you, dr. marty, because you advise the miami-dade schools on masks even in the face of florida governor, ron desantis, signing that executive order banning mask mandates at schools.