meg megan ranney joining us as america mar a tragic milestone.hank you to both of you. >> thank you. >> thank you. >> woodruff: today, the trump administration announced additional sanctions on iran, after declaring over the weekend that all u.n. sanctions initially lifted by the iran nuclear deal, had been re- posed. but that "snap-back" of u.n.on sancwas rejected by much of the international community. here's nick schifrin.ri >> sch judy, the administration calls its policy on iran maximum prsure, and today it's trying to increase that pressure, but it's also increased a shpedown with eu allies. an executive order imposes sanctions on iran if is weapons, and on anyone selling weapons to iran. and e departments of state, treasury, and commerce sanctioned iranians affiliated with iran's nuclear ssile industries. oat followed what the u.s. calls the snapbau.n. sanctions over the weekend. these were the sanctions lifteds by tning of the 2015 iran nuclear deal. the u.s. says u.n. sanctions are now reimposed on iranian weapo sales, ballistic missile

ranney, thank you so much for your time this morning. appreciate it. >>> and up next, 51 days until election day and the president spent the entire week playing defense. two intrepid reporters open up their net bootebooks and tell ut is going on inside the campaigns. stay with us. like the "visit a doctor anywhere our rv takes us" plan. the "zero copays means more money for rumba lessons" plan. and the "visit my doctor while eating pancakes" plan. unitedhealthcare is the #1 medicare plan provider, so you're sure to find the right plan for you. including the only plans with the aarp name. get medicare with more. "ok, so, magnificent mile for me!" i thought i was managing... ...my moderate to severe crohn's disease. yes! until i realized something was missing... ...me. you ok, sis? my symptoms kept me- -from being there for my sisters. "...flight boarding for flight 2007 to chicago..." so i talked to my doctor and learned- ...humira is for people who still have symptoms of crohn's disease after trying other medications. and the majority of

megan ranney, an emergency today the trump -- an emergency physician. such a milestone, a moment for reflection, and people are struggling with how to process it. how are you reflecting on this moment with 200,000 american deaths? >> i first take a mont as you just did to honor all of the lives that have been lost, both those i have personally touched in my emergency department and the hundreds of thousands more across the country. the effect that the holes of these lives lost or creating in their communities. the second thing i do is think about how i got here. and think about what we need to do go forwards to keep the number from dublin, tripling, or quadruple. -- from doubling, tripling, or quadrupling. amna: another staggering statistic, when you look at the u.s. death toll, the u.s. makes up about 4.2% of the world population but accounts so far for 20% of all covid-19 deaths worldwide. you get your head around that number? >> this is preventable. if you look at the rest of the world, they showed us the roadmap for what we should have done. we trie

megan ranney. we hoped to hear from dr. fauci there, a glitch in the system. i have the graph still up here. this was the idea, to try to get the baseline down, try to get it back down around 20,000. instead, we're at 50,000 or 40,000. where are we on labor day weekend? >> good morning, john. thank you for having me on. yes, so this is a problem as we head into labor day. because part of the goal of lowering that baseline, that dr. fauci talked about, is we know when kids go back to school this fall, when colleges open up, we're going to see more cases and those are going to go up. you don't want to be starting off with a baseline of 40,000 to 50,000 cases because it is going to be much, much harder to control those outbreaks. so those the goal is -- was to get this much, much lower. unfortunately that's not the position we find ourselves in as we head into labor day weekend. >> and one of the issues we face is college campuses, the back to school question, whether talking from k through 12 and colleges, 12 days ago, we started tracking this, students starting

ranney, thank you so much for joining us. moment -- we're told the president of the united states is leaving the white house, leaving the white house. the president stopped and spoke to reporters on the south lawn of the white house before boarding "marine one." we're about to get that tape. we understand he answered reporters' questions. we'll share that with you when we come back. will back up our system. but dad, rid-x contains billions of enzymes proven to break down even paper to keep your whole septic system healthy. for paper, grease or waste breakdown. use rid-x. she always wanted her smile to shine. now, she uses a capful of therabreath healthy smile oral rinse to give her the healthy, sparkly smile she always wanted. (crowd cheering) therabreath, it's a better mouthwash. at walmart, target and other fine stores. >>> there's more breaking news coming into "the situation room" right now. a few moments ago, the president spoke on the south lawn of the white house before leaving for a political campaign rally with suppo

ranney, dr. jha, grateful for your insights and expertise on a sunday morning.appreciate your time. thank you so much. >>> up next, civics class trump style. the president won't commit to a peaceful transition of power or to accept any vote tally that shows him losing. stock slices. for as little as $5, now anyone can own companies in the s&p 500, even if their shares cost more. at $5 a slice, you could own ten companies for $50 instead of paying thousands. all commission free online. schwab stock slices: an easy way to start investing or to give the gift of stock ownership. schwab. own your tomorrow. hey. think you're managing your moderate to severe ulcerative colitis... ...or crohn's disease? - are you ok? - i did. i was there. but i never knew when my symptoms... ...would keep us apart. so, i talked to my doctor and learned... ...humira is for people who still have... ...uc or crohn's symptoms... ...after trying other medications. and humira helps... ...people achieve remission that can last. so you can experience few... ...or no symptoms. humira can lower y

ranney, i mean, is he -- because, you know, yes, he has become a controversial figure, but the people who dislike him, they're disliking him because donald trump is effectively sending that signal, and people who support him are sending that signal so if he, at the end of the day, says, okay, we have a vaccine, you can trust it, i'm going to take it, is that case closed as far as you're concerned from the public health and medical point of view? >> yeah, so, i would trust dr. fauci to not say that the vaccine is trustworthy if it isn't. he and dr. collins, the head of the nih, the folks at the fda, they'll have access to this data that maybe the rest of us can't see at the time that it's approved. the best possible scenario, though, is that before the vaccine is approved, that that data, the trial data, gets released to the public, and either a preprint or in a peer review journal that all of us as medical and public health professionals have the chance to look at it and assess it. i will trust dr. fauci. he won't say it's trustworthy if it's not. >> okay, well, that's a lot we can ag

dr megan ranney is an emergency physician and researcher at brown university.get-us-ppe. thank you forjoining us. we heard there that this is not going to be a political process, that you can believe this vaccine, but all the indications are that american trust in the vaccine process is declining. how damaging is that? that is absolutely right. a recent survey out yesterday suggests that fewer than 20% of americans currently trust the process for releasing a covid—19 vaccine. they don't trust it is going to be safe or that it's going to be effective and, let me be clear, that is a direct result of the politicians getting involved in the politicians getting involved in the science of covid—19 prevention over the last six months. we have seen over the last six months. we have seen debates about hydroxychloroquine, debates about convalescent plasma, about masks, the science on all of this is clear, and when politics gets in the way it confuses people. we have a long way to go in getting the trust of the americans back, which isjust an absolute crying shame, becaus