within the democratic party. presidentjoe biden is vowing to stay in the race for the white house despite a shaky showing at the cnn presidential debate. his performance prompted the new york times editorial board to call for the president to leave the race, writing plainly: �*mr biden is not the man he was four years ago.�* questions over mr biden�*s age and fitness for office are not new. but the face—off between president biden and former president donald trump on thursday evening triggered private panic among some democratic officials, despite a firm public defense of mr biden�*s performance from his campaign and allies. the 90—minute affair fielded questions in a fiery speech on friday, mr biden hit back at criticism over his age and told supporters he will win re—election in november. i know i'm not a young man.

i don't walk as easily as i used to, i don't speak as smoothly as i used to, i don't debate as well as i used to, but i know what i do know, i know how the choice is simple, when you get knocked down, you get back up! meanwhile, former president trump held a rally of his own just hours later, where he also dismissed speculation that mr biden would bow out of the race. we had a big victory against a man that does really looking to destroy our country. he's the most incompetent president in the history of our country — president in the history of our country. many people are saying that after— country. many people are saying that after last night's performance thatjoe biden is leaving — performance thatjoe biden is leaving the race. the fact is, i don't — leaving the race. the fact is, i don't believe that because he does _ i don't believe that because he does better in the polls than any of— does better in the polls than any of the democrats.

live now to david weigel who covers politics at semafor. you've got the joe you've got thejoe biden campaign trying to make it look as unremarkable as possible. they are trying to compare what joe biden did with what happened then. there are columnists, influences and some democrats who are against biden saying that he needs to resign. joe biden himself said he is not a good debater but we have to adjust for him.— to ad'ust for him. what we did see to adjust for him. what we did see today _ to adjust for him. what we did see today was _ to adjust for him. what we did see today was president - see today was president biden speaking passionately a rally

in north carolina. do you think this is reassuring? i’zfe in north carolina. do you think this is reassuring?— this is reassuring? i've been talkin: this is reassuring? i've been talking to — this is reassuring? i've been talking to voters _ this is reassuring? i've been talking to voters here - this is reassuring? i've been talking to voters here and i talking to voters here and local democrats who saw that. they say they feel heartened by that debate. no democrat thinks they are going to getjoe biden in 2012 or in 2020 but he has risen to the occasion and has dispelled worries that he's too old for the job. dispelled worries that he's too old for thejob. it dispelled worries that he's too old for the job. it was a rally, not her spontaneous interview. not series of questions but it was something with a teleprompter with good lines. �* ., ., , lines. but on the other side, falsehoods _ lines. but on the other side, falsehoods and _ lines. but on the other side, falsehoods and misleading l falsehoods and misleading statements from donald trump. how do voters feel about essentially getting the truth about what a trump presidency

would mean?— about what a trump presidency would mean? because i've been on the trail— would mean? because i've been on the trail with _ would mean? because i've been on the trail with saunders - would mean? because i've been on the trail with saunders and l on the trail with saunders and i've heard mainly from democrats, they are frustrated that trump, who does not say truthful things about his own or biden's record, and he hates things biden has done years later, migrants working in the social security system, the biden performance was so weak that he wasn't in the conversation. they can't control what people are talking about what they remember from a debate. they are aware that trump has got away with some falsehoods that any candidate more on the game would have called out in real time. they know it's a problem but they have to deal with the aftermath.—

have to deal with the aftermath. ~ �* ., aftermath. we've got some high rankin: aftermath. we've got some high ranking democrats _ aftermath. we've got some high ranking democrats coming - aftermath. we've got some high ranking democrats coming out l aftermath. we've got some high | ranking democrats coming out to defend president biden but behind closed doors, do you have any insight into the conversation?— have any insight into the conversation? �*, ., ., ., conversation? there's a lot of anic. conversation? there's a lot of panic the — conversation? there's a lot of panic. the reactions - conversation? there's a lot of panic. the reactions have - panic. the reactions have basically been from very few democrats on the record that he should go, but others are saying he had a bad night. people who have been putting on headphones, forgetting their taking phone calls. some things are over related but this has not been. they are worried. the democrats are looking at the aftermath of the polling and saying, is this a dramatic enough event that we need to talk about a replacement? if

they do, it's complicated in terms of process. i don't know what sort of candidate they would have. there is a vice president who is polling less than him but doesn't have his articulation issues. as we mentioned, as criticism grows, top democrats are standing behind president biden. former president barack 0bama put out a statement saying: (ff bad debate nights happen. trust me, i know. but this election is still a choice between someone who fought for ordinary folks his entire life and someone who only cares about himself.

between someone who tells the truth; who knows right from wrong and will give it to the american people straight — and someone who lies through his teeth for his own benefit. last night didn't change that, and it's why so much is at stake in november. last night worried people but it doesn't surprise me too much. you'll see the campaign now firing up and realising that it's going to take everybody up and down the ballot to win this election. that was always the case. joe biden has a test over the next couple of weeks. but we know he's a guy that gets back up, who is resilient and we can see that now. who is resilient and we can see that nova-— who is resilient and we can see that now. �* . ., ., , ., ~ that now. amanda, do you think the country _ that now. amanda, do you think the country can _ that now. amanda, do you think the country can forget _ that now. amanda, do you think the country can forget some - that now. amanda, do you think the country can forget some of i the country can forget some of that performance. you say you're not surprised by it. do you're not surprised by it. do you think he should step aside? no. i think he has proved himself. he has said, watch me. if there is another stumbled

then i do think democrats will take a look at what the next steps. but everyone gets the chance to have a bad night. every official has had one bad night! every official has had one bad niuht! ~., , every official has had one bad niuht! , ., ~ night! many might make the oint night! many might make the point that — night! many might make the point that barack _ night! many might make the point that barack 0bama's i night! many might make the i point that barack 0bama's poor performance, he was relatively young and could pick himself back up and practice hard for debates. not necessarily the case forjoe biden so how does his campaign team getting back on track? , ., , on track? they need to put in environments _ on track? they need to put in environments where - on track? they need to put in environments where he - on track? they need to put in environments where he can l environments where he can reconnect with people. he had a tough night but we will see in this next debate, what does it look like? i hope he gets back to his policies and the difference between him and trump. and i hope he calls out trump, the lies he has spewed.

biden got back on the stage and was able to be that biden we know. he needs to keep doing that to infuse the trust and stamina that people hope for. but those false statements, if there's a second debate, not necessarily something president biden's able to do, like last night. how does he counteract those false claims? i night. how does he counteract those false claims?— night. how does he counteract those false claims? i think one ofthe those false claims? i think one of the lessons _ those false claims? i think one of the lessons here _ those false claims? i think one of the lessons here is - those false claims? i think one of the lessons here is that - those false claims? i think one of the lessons here is that hisl of the lessons here is that his campaign team recognise that fact and figures aren't quite the way to get back at trump. they don't quite work when you're working with a candidate who lives every single step of the way. i suspect the next debate it will be quite different. it certainly has to

be different but i think we'll see a different kind of practice. see a different kind of practice-— practice. what kind of conversations - practice. what kind of conversations you - practice. what kind of. conversations you think practice. what kind of- conversations you think is campaign having privately now? i think you've got to look at what your plan looks like. some things have not changed, surrogates were always going to be important forjoe biden. they knew they would be an older candidate and take everybody up and down that ticket. what we have seen change is that they need people to fire up now and get on the road. that's what's changed. this quite a bit of cause behind—the—scenes. the campaign are saying they need help and they need people out there right now. do they need people out there right nova-— right now. do you think democratic _ right now. do you think democratic voters - right now. do you think democratic voters have right now. do you think- democratic voters have the right to feel frustrated after what they saw last night with

matt is there enough young blood in politics? i matt is there enough young blood in politics?— matt is there enough young blood in politics? i think we are all frustrated. _ blood in politics? i think we are all frustrated. i- blood in politics? i think we are all frustrated. i do - blood in politics? i think we are all frustrated. i do hope we see a new generation and we don't have to do this again in the future. meanwhile, republicans are claiming victory. with some even calling on president biden to be removed under the 25th amendment, which allows for the president's removal from office if he is deemed unfit to serve. including speaker of the house mikejohnson. president biden is not up to thejob. everyone sees president biden is not up to the job. everyone sees that clearly. it's not something i take pleasure in pointing out because it's so dangerous because it's so dangerous because we are concerned about the stature on the world stage.

i think it's a very clear choice regarding stamina and temperament. with me is matt terrill, republican strategist and former chief of staff for senator marco rubio's presidential campaign. matt, your thoughts on what you saw on stage last night? well, a bad night for president biden. it wasn'tjust a bad night. this is a recurring theme that president biden has about age, stamina and energy. it's his biggest vulnerability. he amplified his concerns. it seems there some problems in politics that are not flexible and this might be one of them. you mentioned age, stamina. he might say that donald trump has more issues when it comes to

the truth. he did repeat falsehoods a number of times and he is using that to try and win favour. and he is using that to try and win favour-— win favour. sometimes what ha--ens win favour. sometimes what happens in _ win favour. sometimes what happens in debates - win favour. sometimes what happens in debates means l win favour. sometimes what - happens in debates means people will examine the performance but sometimes, what happens is the media covers the spin, often... right now, everything we are talking about is the poor performance of president biden. �* ., , . biden. but voters have the riaht biden. but voters have the ri . ht to biden. but voters have the right to know _ biden. but voters have the right to know the - biden. but voters have the right to know the truth? i biden. but voters have the i right to know the truth? the fact checkers _ right to know the truth? the fact checkers dive _ right to know the truth? tie: fact checkers dive into everything you are discussing but that isn't what is being talked about regarding this debate. that's not the narrative. the real question

is... . ~ narrative. the real question is... talking about this narrative _ is... talking about this narrative put _ is... talking about this narrative put forward l is... talking about this | narrative put forward by is... talking about this - narrative put forward by donald trump. he talked about black and hispanicjobs. will that and hispanic jobs. will that not and hispanicjobs. will that not isolate some important voter groups?— not isolate some important voter u-rous? , �* �*, voter groups? president biden's underperforming _ voter groups? president biden's underperforming will— voter groups? president biden's underperforming will make - voter groups? president biden'sl underperforming will make those groups, they have been lockstep with the democrat party for years. the problem is president biden has been underperforming which is a challenge. and the concerns they had around his stamina which was amplified last night. they were pushed forward with, amplified, it's not a good situation.- not a good situation. there were also _ not a good situation. there

were also concerns - not a good situation. there were also concerns about l not a good situation. there l were also concerns about the future of democracy. do you think we got a clear enough answer when donald trump was asked for example about whether he would accept defeat? is asked for example about whether he would accept defeat?- he would accept defeat? is the answer he's — he would accept defeat? is the answer he's been _ he would accept defeat? is the answer he's been giving - answer he's been giving consistently for a number of years now and voters either agree with those answers or not, like him or not, but we are not talking about democracy in this debate or anti—abortion, or president biden and democratic policies, we are talking about president biden underperforming. both had a mission last night and biden failed at that mission. both candidates had they had good performances then this would have moved on. this may very well be a side shift in this

campaign. d0 well be a side shift in this campaign-— well be a side shift in this camaiun. ., campaign. do you back donald trum's campaign. do you back donald trump's vision _ campaign. do you back donald trump's vision sketched - campaign. do you back donald trump's vision sketched out i campaign. do you back donald trump's vision sketched out if| trump's vision sketched out if he was president on the global stage, lack of support with ukraine?— stage, lack of support with ukraine? �* , . ., , ukraine? there's certain things i aaree ukraine? there's certain things i agree with — ukraine? there's certain things i agree with and _ ukraine? there's certain things i agree with and some - ukraine? there's certain things i agree with and some i - ukraine? there's certain things i agree with and some i don't. l i agree with and some i don't. there's no question foreign policy is gonna be out there in this campaign. it's about the voters who will decide the election. it's the independent, undecided voters. how does that play with foreign policy or inflation or immigration? both political bases will have people turning out for them at the end of the day. wisconsin, michigan and pennsylvania. and the question is what do voters care about, inflation,

immigration. foreign policy has become one of the focal issues in the race between biden and trump, with the pair sparring over their contrasting visions for america's role on the world stage. the outcome of november's presidential election may have major implications for how the u—5 implications for how the us engages with its allies abroad, and for the ongoing conflicts in ukraine and gaza. 0ur correspondents in moscow, kyiv and jerusalem were watching for reactions around the world. it was four o'clock in the morning when the us presidential debate started here in moscow. was vladimir putin watching? while his spokesman said he wouldn't get up spokesman said he wouldn't get up early to watch a us debate which wasn't technically a no but i'm sure someone from the kremlin was glued to this because they understand that the election will have a direct impact on russia's war in

ukraine. had he been watching, he would have enjoyed the spectacle because ofjoe spectacle because of joe biden's spectacle because ofjoe biden's shaky performance. donald trump's criticism of us military assistance to kyiv as well as the fact that at times it sounded as if mr trump was blaming mr biden more than mr putin for the war in ukraine. it was more heat than light when it came to ukraine in the debate. each candidate tried to blame the other for the invasion of blame the otherfor the invasion of ukraine. president trump saying that it was because ofjoe biden's week policy on afghanistan and president biden saying it was because of donald trump is my relationship with vladimir putin, giving him the green light. there was one significant moment where the moderators tried to press

donald trump on the idea of a deal that he could somehow get for russia and whether ukraine would have to accept russia's term. he said no but didn't give any more details behind that. he did say that ukraine was getting a lot of money from the united states. he talked about $200 billion and president zelenskyy as being a good salesman. i president zelenskyy as being a good salesman.— good salesman. i don't think they have — good salesman. i don't think they have any _ good salesman. i don't think they have any kind _ good salesman. i don't think they have any kind of- good salesman. i don't think they have any kind of new i good salesman. i don't think| they have any kind of new ro mat — they have any kind of new ro mat to — they have any kind of new ro mat to help the region extricate itself from this desperate situation and end the war between the two parties in gaza — war between the two parties in gaza i— war between the two parties in gaza. i don't think the dial was — gaza. i don't think the dial was really moved in terms of policy — was really moved in terms of policy. both men are standing

to be — policy. both men are standing to be president of the usa which _ to be president of the usa which means traditionally, they show— which means traditionally, they show strong support for israel. they— show strong support for israel. they both _ show strong support for israel. they both did that. there was one point— they both did that. there was one point where itjoe biden was — one point where itjoe biden was defending his record on gaza — was defending his record on gaza from criticism from donald trump — gaza from criticism from donald trump. now, idon't gaza from criticism from donald trump. now, i don't think that will trump. now, idon't think that will help— trump. now, i don't think that will help the fractious relationship between him and the prime minister benjamin netanyahu. i think that there was a — netanyahu. i think that there was a lack of recognition about what _ was a lack of recognition about what the — was a lack of recognition about what the palestinians have been going _ what the palestinians have been going through in gaza and treyond~ _ president biden had hope to win over key constituencies in battleground states and undecided voters at friday's debate. to talk about the debate's potential impact on voters' attitudes, i spoke to ruth igielnik. she's the new york times' polling editor.

the poll say that trump won the debate last night but i think it's too early to know. the poll we had from last night, i think the polls over the next few days will be what we are paying attention to.- few days will be what we are paying attention to. what about the emotional— paying attention to. what about the emotional feeling _ paying attention to. what about the emotional feeling and - paying attention to. what about the emotional feeling and all. the emotional feeling and all of this? what feelings are coming through from the public about what they saw on stage last night?— last night? you are certainly seeinr last night? you are certainly seeing early _ last night? you are certainly seeing early polls _ last night? you are certainly seeing early polls that - last night? you are certainly seeing early polls that the i seeing early polls that the democrats are very upset about what happened last night. they are not thrilled with joe biden's performance. they are feeling very concerned.- feeling very concerned. what about history? _ feeling very concerned. what about history? what - feeling very concerned. what about history? what does - feeling very concerned. what about history? what does it i about history? what does it tell us about whether a candidate can recover from a poor performance? i candidate can recover from a poor performance?— poor performance? i think history makes _ poor performance? i think history makes it _ poor performance? i think history makes it clear- poor performance? i think history makes it clear that candidates certainly can. barack 0bama had a very

difficult first debates but bounce back. i do think it's possible to recover from something like this. i’m something like this. i'm curious _ something like this. i'm curious about _ something like this. i'm curious about what - something like this. i'm curious about what you are saying when you are seeing people who are undecided, independent voters. how are they reflecting on last night? people have been asking about joe biden's age and there is no doubt in our piles that undecided voters are concerned about his age which was more than before the debate. politics never happens in a vacuum. this isn'tjust about the debate. when you are speaking to voters, what are the other kind of factors that can influence the public�*s opinion on the candidate. taste opinion on the candidate. we have opinion on the candidate. -

have people who are concerned about biden's age even before the debate so i think the public is looking for speeches and other opportunities to see how they feel aboutjoe biden's age. i think this will be a big part of this down the line. there is another debate and another opportunity for the public to get to know the candidates. these two men have run before and been president before so undecided voters may not be as undecided as thought. i think people are paying attention to what the candidates are saying. it's still early and we are not seeing a lot of people paying a tonne of attention to the election. so at this early stage, it's harder to know but as we get closer to labor day and those festivities kicking

in it may be different.- and those festivities kicking in it may be different. what of this when _ in it may be different. what of this when states _ in it may be different. what of this when states indicating? i this when states indicating? donald trump is winning in five of the six swing states. it looks electorally pretty good for donald trump. thursday's cnn presidential debate was not the final opportunity for mr biden and mr trump to appeal to the american people. the republican national convention is coming up in nearly two weeks. mr trump is expected to be confirmed as the gop presidential nominee, and announce his pick for vice president. then, in august, the democratic party will convene

for its convention. mr biden is expected to be confirmed as the democratic nominee before the convention. then in september, the two candidates will face off on the debate stage once again, before november's election. hello. the first half of this week brought us heat and humidity quite widely, but over the past few days, we've seen things turning cooler and fresher as well. now through the course of the weekend, fairly settled. a lot of dry weather on the cards, some spells of sunshine on offer, and another warm day in the south east on saturday before cooler conditions work across the uk again for sunday. so what we've got is this frontal system starting to work its way in from the west, so that's going to bring a bit more cloud to parts of wales, northern england, perhaps the south west of england, southern counties of northern ireland initially too. a few spots of rain if you're underneath this weak weather front here through the central swathe of the uk, either side of that, a little bit more sunshine. northern scotland seeing a bit more cloud, bringing a few showers. not as many as recent days. it won't be as windy here,

but still fairly breezy. now in the hazy sunshine down towards the south east, temperatures again up to about 25 degrees or so, but a fresher feel away from the south east of england, typically about 12—19 celsius. 0vernight saturday moving into sunday and we've still got this weak weather front. it's really quite slow moving over the next 2a hours or so. eventuallyjust pushing across parts of southeastern england and east anglia as we start sunday morning. could be the odd spot of light rain, and here around about 13—15 celsius. but, again, a fairly fresh feel to the weather to start sunday where we've got those clearer skies further north. so, sunday then, initially quite cloudy, perhaps the odd spot of showery rain in the south east, that should clear away. and then this cloud in the north just sinks a bit further south. it will be a broken cloud, so there'll be some glimpses of sunshine. also the chance of a few showers, particularly through the spine of england, for instance. temperatures between only about 12—21 celsius, so a few degrees below average really for this time of year. what about the week ahead? well, it looks like we've got a westerly influence to our weather. so although high pressure

sits in the atlantic, weather fronts are toppling around the northern side of that high pressure and bringing fronts our way at times. so monday, some rain initially for northern ireland, western scotland, just pushing eastwards through the day, some uncertainty about how far south we will see any rainfall, that front tending to gradually fizzle out further south, i think. so southern england, south east england, east anglia in particular, could stay dry, 21 degrees or so for the warmest spots, but we're typically looking at the mid to high teens for most of us on monday. and that theme continues, really, for much of the week ahead. after a warm day in the south east on saturday, slightly cooler conditions with a mixture of some sunny spells and a bit of rain at times, too.

this is bbc news. we will have the headlines for you at the

top of the hour, which is straight after this programme. last year, i travelled to california to see the latest innovation aiming to help us live healthier lives for longer. this time, i'm back to look at our brain health. social interaction is basically exercising your brain. i meet the scientists and experts investigating what we can do to reduce our cognitive ageing. what you see here is six different major circuits of the brain. could we bend the arrow of alzheimer's disease i risk down on itself? hey, you must be lara! hello! i visit the residents of one of the world's blue zones... i don't smoke, i don't drink alcohol, and i'm a vegetarian. ..and catch up with the tech entrepreneur trying to turn back time on his body and mind. it's going to feel like the womb. i can't remember what that felt like! they laugh