More details coming up. The u. S. Secretary of state is in london with talks with Prime MinisterBoris Johnson. We will have a live report from the british capitol. Good to have you with us. Well, after months of politicizing the issue, u. S. President donald trump appears to be finally endorsing masks. Mr. Trump tweeted a photo of himself wearing a mask and described it as a patriotic act. He also plans to restart the coronavirus briefings today. It may be an effort to revive his Approval Ratings after a failed response to the pandemic. The coronavirus cases are still spiking in at least 31 u. S. States and the death toll has topped 140,000 people. Thats according to Johns Hopkins university. Despite nearly 52,000 new cases on monday, there have been massive testing delays. A top u. S. Lab says covid19 test results are lagging by up to two weeks in some cases. Theres promising news from three vaccine trials. There is evidence they can produce immune responses to protect people against covid19 infections. But a World Health Organization official says more research is needed to ensure they are safe. Although President Trump now says Wearing Masks is a patriotic act, many u. S. States are still refusing to make them mandatory in public. Cnns nick watt has more. Reporter in florida the governor was heckled today. Floridas average death toll doubled these past two weeks. Monique hiccovid19. Brian francis and michaela in the space of 11 days. I honestly cant say where they got the virus from because they basically was home bound. The only thing, we went to orlando for a vacation and all of a sudden they came home sick. Wear your masks. If you dont have to come out, stay home. Reporter but the governor still wont mandate masks so in miami the city will fine those with uncovered faces. Its bizarre that we have turned mask wearing into something political. Imagine you were an alien coming to planet earth, you would be totally astounded, puzzled, amazed wondering what is going on here. Reporter nationally were seeing three times the number of cases every day compared to mid june and nearly 60,000 americans are hospitalized with covid19 getting close to the grim record set back in april. There is no question that were having a surge right now. It really is all hands on deck. This is serious but we know how to stop this. Reporter in this graph there might be some optimism. Average new case counts are flattening just a little in our hot spots, california, arizona, florida, texas. Lets hope that holds. The possible reason . Since the mask order went into place i have seen more people in my community who are Wearing Masks, doing more social distancing. I think some of these individual Behavioral Changes are driving some of the numbers were seeing. Reporter as new york city enters into phase 4, Governor Andrew Cuomo has a message to party goers. Im telling you in plain new york speak as a born and bred new yorker, it is stupid what youre doing. It is stupid. Dont be stupid. What theyre doing is stupid and reckless for themselves and for other people and it has to stop. Reporter and he has a message for police departments. Make people wear masks. They have to enforce the law. That is the only line between anarchy and civilization. Reporter here in Los Angeles County four days in the past week we set new records for the number of people in the hospital with covid. The mayor here is saying we are on the brink of going back to a stay at home order and the governor of california says the next few weeks are going to be critical across the whole state. Nick watt, cnn, los angeles. Meantime, in the United Kingdom there is some good news in the search for a vaccine. The preliminary results of a trial developed by the university of oxford suggests that its safe and induces an immune response. That trial was one of three we heard about on monday. Human trials from two other vaccine makers have produced similar outcomes, but a leading researcher from oxford says even if a vaccine is developed by years end, theres still a long way to go until the pandemic is contained. I think getting a grip on coronavirus next year having a vaccine distributed hopefully before the end of this year. Remember, distributed is anything from producing a million doses to 2 billion doses and the sooner we get an efficacy result that is positive, the faster we can scale up. So i think its really quite likely that we will know by the end of this year or a few months before that that some vaccine works and bringing hundreds of millions of doses immediately after is unlikely. Millions, tens of billions quite possibly, but it will be a graded response so were going to have to prioritize certain populations. Maybe the older population, maybe people who are first responders. And joining me now is dr. Peter drobac. He is an Infectious Disease and Global Health expert at oxford but hes not affiliated with the vaccine trial. Thank you so much for being with us. Thanks, rosemary. This new Study Reveals the oxford covid19 vaccine is safe and it provokes an antibody response within 28 days and a t cell response within 14 days. How encouraged are you by this progress . Well, these are extremely promising results and everything we would want to see out of a study like this, we did see. One of the things thats important about the immune response, weve been talking about antibodies. Antibodies are onehalf of the immune system. The other half are t cells. The fact that this stimulated a response in both parts of the immune system is encouraging. Its a sign that it should give the immune system more of a memory. One of the things we hope is that an effective vaccine will be durable, meaning that the effect will last a long time. Right. Oxford universitys partner, astrazeneca says it might be able to produce a vaccine as early as september for emergency use. Do you think thats a realistic time line . What about the general public in the u. K. And elsewhere around the world . How long might it take to reduce and distribute dosages for all of those willing to take it . Im always cautious of making predictions about the future. It does happen that even at late stages of trials that promising treatments and vaccines do fail. This is not a guarantee of success. A major phase 3 trial is already underway where tens of thousands of participants in several countries, including brazil and south africa, are already being enrolled. Thats going to be the next step to demonstrate whether this vaccine is effective in preventive or mitigating disease. We hope the results are going to come this year. It is important to premanufacture doses at scale so we could get them out as quickly as possible. You know, the reality is that we need to have a strategy to make sure that when we find an effective vaccine, its going to get to the people who need it most first. Thats going to be Health Workers and other key workers and then medically vulnerable folks, not just in the u. K. And america but around the world. Understood. Of course, one big concern here in the United States is public trust in any potential vaccine and polls suggest that about half of the u. S. Population wont take a covid19 vaccine so how do you convince those people its safe . Because building herd immunity is dependent on most of that population taking the vaccine. Well, thats exactly right. This is also something that we should be working towards and planning for now. We are working with unprecedented speed, the scientific community, on this vaccine effort but without trying to cut corners around safety. That kind of safety monitoring is going to be important. I think good, Clear Scientific communication about the benefits and risks of vaccines as these progress is going to be very important and then political leadership. Weve seen dangerous examples about politicizing important public goods like mask wearing. We have to do everything we can with this vaccine effort to avoid getting caught in that same trap. Yeah. It seems masks are what we need to be using until these vaccines are made available. As you point out, there is some reluctance as a result of that polite psization. I wanted to move to the testing front. People are waiting four to eight days for test results to come back, and in some instances up to three weeks. So some of them have actually gotten over covid19 by the time they get the results. Where else in the world are there delays like that and how surprised are you that the worlds super power is unable to provide its population with faster test results . Well, its really a staggering failure. Of course this is coming after months and months of this. You would think having had all the time to prepare, all of the sacrifices the American People had made sheltering in place over months that we would be in a better place. The reality is the systems are being overwhelmed. A lot of places werent preparing for the surge in cases weve seen in recent weeks. Were doing more tests in the u. S. Than ever before. Its coming nowhere close to meeting the demand. Youre absolutely right a test that you have to wait four, five, six days is unheard of. If you cant protect your family members and the public, you risk continuing this spread. Doctor, many thanks. Republicans are now pushing back on a white house proposal to deny additional money for testing and tracing in the next stimulus package. Cnns Kaitlyn Collins has more. Reporter President Trump sat down with the top two Congressional Republicans today in hopes of getting on the same page when it comes to the next Coronavirus Relief bill. Were focused on starting with another trillion dollars. We think that will make a big impact, and the focus is, as i said, really about kids and jobs and vaccines. Reporter the white house infuriated Senate Republicans this week end after moving to block billions of dollars gop lawmakers wanted in the bill including 25 billion for grants for testing and tracing and another 10 billion for the cdc. One gop aide called the administrations effort tone deaf as hell. Today they tried to put on a united front of priorities. Were going to make sure we dont pay people more money to stay home than go to work. We want to make sure frivolous lawsuits dont prevent schools, universities, schools from reopening. Reporter talks are expected to be contentious given time is running short and they are nowhere close to an agreement. Obviously you cant pass the bill in the Senate Without the democrats and we cant talk to them as well. Reporter after a long hiatus, trump announced hes resuming his daily coronavirus briefings. Ill do it at 5 00 like we were doing. We had a good slot. A lot of people were watching and thats a good thing. When i see the disinfectant where it knocks it out reporter the Task Force Briefings all but came to a halt after the president suggested in april people could use disinfectants. Deborah, did you ever hear that in. Reporter he wont say whether the Health Experts will join him. He criticized dr. Anthony fauci. Hes a little bit of an alarmist, thats okay. Reporter wearing a mask can cause problems said the president. This stands in stark contrast to what the Surgeon General said. Im begging you. Please understand were not trying to take away your freedoms when we say wear a mask. Reporter he believes its patriotic to wear them. It took until july 20th for aides to get the president to embrace the idea and wear a mask after the cdc announced on april 3rd they believed people should wear a mask when they leave their home. Whats behind this are not the concerns but concerns about hig sagging poll numbers, were told. Thats what will cause the campaign to regroup. Kaitlyn collins, cnn, the white house. And still ahead, President Trump faces off with major city mayors. He argues federal forces are needed to calm protests and cut crime but local Officials Say those agents are only fueling the fire. And eu leaders agree on a plan to pull their countries out of a recession brought on by the virus. We are live from paris. Thats next. If your adventure. Keeps turning into unexpected bathroom trips. 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Unlike ordinary memory want supplementster . Neuriva has clinically proven ingredients that fuel 5 indicators of brain performance. Memory, focus, accuracy, learning, and concentration. Try our new gummies for 30 days and see the difference. Welcome back, everyone. We are following major developments in the e. U. Where leaders have agreed on a massive aid package to stimulate their economies hit hard by the pandemic. After five days of talks leaders agreed on a budget of more than 2 trillion, which includes nearly 860 billion in grants and loans. Cnns melissa bell is here to discuss all of this. She joins us live from paris. Melissa, how significant is the deal and how is it going to work . Reporter its an important deal. It is a big deal. It is a firsttimer that the European Union has agreed on the idea of mutualized debt. It has resisted for so long. It took five days. Bitterly divided over that question of the neutralization of debt. In the end, there were disagreements over the size of the Recovery Fund that was needed, whether what proportion of that should be given to countries and what proportion should be loaned. Of course, all of the attachments that come with brussels having much more power than ever its had before. In a sense thats the crucial part of this, rosemary. The question that has divided, the states from france and germany, the question of countries now being responsible for money spent elsewhere, there is the new power that gives brussels the ability to raise capital on the market, to be responsible for debt. That is something new. This is the first time they are Something Like much more a sovereign state. Melissa bell joining us live from paris. Many thanks. In cities across the United States, mayors are facing off with the president , donald trump. He has sent federal forces to deal with demonstrators in portland, oregon. He is planning deployments in other cities, but local officials object saying the administration is only making things worse. Josh campbell has the details. Reporter as protests continue here in the city of portland for well over 50 days, a war of words is shaping up in washington, d. C. , from officials at the u. S. Department of Homeland Security. In a string of tweets on monday acting Homeland Security deputy secretary Ken Cucinelli saying this is terrorism projecting an image of instability. He said violent an narcotic kiss are inciting terrorism. Chad wolf told fox news that the department will continue to intervene as it sees fit. Its worth pointing out that as dhs officials describe whats taking place here in portland as widespread chaos, the epicenter of the protests is largely relegated to one city block outside of a courthouse. There have been instances of rioters clashing with federal officers who will come out of that building, launch projectiles into the crowd, tear gas and the like to try to push them back. The main focus of protestors is one in a small area downtown, not widely throughout the city. Finally dhs officials are not alone in the harsh rhetoric. President donald trump weighing in saying that his administration is now looking at not only sending additional federal resources here to the city of portland but also to other cities, primarily those run by democrats. Trump saying he was looking into sending resources to new york, chicago, philadelphia, detroit, baltimore as well as oakland, california, although its worth noting none of those cities have seen any indication of widespread destruction. Josh campbell, cnn, portland. Its not just talk from President Trump. Law enforcement says they plan to send federal agents to chicago this week but chicagos mayor is pushing back and pushing back hard. Lori lightfoot tweeted, mr. President or not, i dont care one bit what your name is, i will not allow troops in chicago. Lightfoot isnt alone. The mayors of all five cities here have signed a letter to attorney general william barr and the acting head of Homeland Security. They want to halt plans to send federal forces to u. S. Cities and for those already present to be withdrawn. In st. Louis, missouri, a couple who went viral for brandishing gun at protestors are now facing felony charges. They were recorded outside their mansion in late june as civil rights demonstrators walked by. A circuit Attorney Says waving weapons in a threatening manner during a nonviolent protest is indeed a felony. The states attorney general calls the charges outrageous and is trying to get it dismissed. The stat