It is like a soldier on a battlefield, you dont know what you will be faced with. On top of that, you have got the fear, am i going to make it home tonight . The brexit bill is published, causing tension within labour, which tells its mps you must vote for it. And one of the leading Contemporary Art prizes in the world won tonight by a british artist and film maker. And coming up in Sportsday On Bbc NewsManchester United went behind in their efl Cup Semifinal second leg at hull. Find out if they could hold onto their aggregate lead to reach the final at wembley. Good evening. Theresa may has arrived in america at the start of a trip which she hopes will pave the way for a post brexit trade deal with the United States. Shell be the first foreign leader to hold talks with donald trump, when she meets the new president at the white house tomorrow. This evening, she addressed a republican conference in philadelphia, in a speech where she sought to find Common Ground with mr trump. But the Prime Ministers bid to launch a new era of co operation with america risked being overshadowed by a row about President Trumps support for torture, and in particular, water boarding. Our Political EditorLaura Kuenssberg is travelling with theresa may and has just sent this report. Opposites attract. Theresa mays hope. But how close does she want to get to him . The Prime Minister made a quieter arrival, making her way down the windy steps in philadelphia. Her Convoy Speeding towards her debut in trump land, here to make friends. No hate, no fear. A reminder right outside the 5 star hotel where they were both to speak, donald trump has many enemies as well. The Prime Ministers warm up as well. The Prime Ministers warm up tax was the president himself. Is he ready for her . Im meeting with the Prime Minister tomorrow, as you know. Great britain. Im meeting with her tomorrow. I dont have my secretary, they want to talk trade, so secretary, they want to talk trade, so ill have to handle it myself. Laughter which is ok. Then it was her turn, with, as you would expect, fulsome reference to the French Friendship across the atlantic. Reference to the French Friendship across the atlanticm has been americas destiny to bear the leadership of the free world and to carry that heavy responsibility on its shoulders, but my country, the United Kingdom of Great Britain and northern ireland, has been proud to share that burden and to walk alongside you at every stage. Applause cheering but this is much more than a meet and greet. Theresa may came with a serious message for republicans and the world cup. Under her leadership, no more western conflicts like iraq, or afghanistan, she suggested. This cannot mean a return to the failed policies of the past. The days of britain and America Intervening in sovereign countries in an attempt to remake the world in our own image are over, but nor can we afford to stand idly by, when the threat is real and when it is in our own interests to intervene. We must be strong, smart and hard headed, and we must demonstrate the resolve necessary to stand up for our interests. And a warning perhaps directed at the president over an assertive russia. When it comes to russia, as so often it is wise to turn to the example of president reagan, who, during his negotiations with his opposite number mikhail gorbachev, used to abide by the adage, trust, but verify. With. Applause with president putin, my advice is to engage, but beware. Noticeable as well, her praise for the republicans, and President Trumps controversial win. Because of what you have done together, because of that great victory you have won, america can be stronger, greater and more confident in the years ahead. Even before she touched down though, theresa may had a taste of how much political trouble closeness to President Trump could cause. Number ten believes the risk is worth it, because theres a big opportunity as well, but this New Friendship could cause fireworks. Every time Donald Trumps speaks his mind. Suggesting torture, banned under british and International Law, works. Torture, banned under british and International Law, worksi torture, banned under british and International Law, works. I want to do everything within the bounds of what youre allowed to do legally, but do i feel it works . Absolutely i feel it works. Prime minister was adamant britain wont change its laws and signalled we might stop Sharing Intelligence with america if torture was brought back. Here among the republican top brass, the unlikely the idea is unlikely to fly. The deepseated policy in American Culture is not to torture. So theresa may is right and President Trump is wrong . so theresa may is right and President Trump is wrong . I didnt say that. Just one of many awkward subjects the pm and president could discuss tomorrow, a test, even in politics true friends tell the truth to one another, not merely platitudes, or what they want to hear. Laura in philadelphia, theresa may clearly trying to set the tone of the relationship she would like the uk to have with donald trump. Thats right, in the city where American Revolutionaries at the time through off their attachment to the uk and declared independence, theresa may came here with much more than brought warm words about the importance of our traditions and shared history. She came signalling for example a clean break with failed, as she suggested, Foreign Policy of the past, interventions that america and britain had been involved in clearly signalling what had happened in iraq and perhaps afghanistan, where american president s had taken british Prime Ministers into conflicts that had worked out badly, very interesting that she used this big, major appearance here to signal such as shift. But more broadly, how does the self described hard working vicars door to reconcile herself to work with the reality tv Star Billionaire president . The answer from this speech was, with great ca re from this speech was, with great care and calibration. There were su btle care and calibration. There were subtle criticisms, warnings for example one russia, but for example on nato, where President Trump has expressed doubts, she said she shared some of those doubts but insisted britain and america must continue to work hard, to make sure that nato still really matters. As ever with theresa may, no single word was wasted. Everything was in there, carefully put there, with meaning behind it. But tomorrow, she is off to the white house and the talks will turn to trade. The audience here, republican in philadelphia, is needed is the audience to be friends with President Trump than it is back home in Downing Street is well aware this relationship is extremely important, but they also know how controversial it could be. Its not so much that shes trying to walk a fine line, its more like shes having to tiptoe across a tight rope across the whole of the grand canyon. Laura in philadelphia, thank you. Our Diplomatic CorrespondentJames Robbins is with me. You were listening to mrs mays speech in philadelphia. One thing that stood out was what she appears to be signalling, a change in uk Foreign Policy. This is a hugely significant speech. Arguably the biggest by a british Prime Minister in the United States since tony blairs in chicago in1999, states since tony blairs in chicago in 1999, when he first, openly advocated armed intervention is against dictators, and of course that was repudiated by theresa may this evening. As if to underscore the failure of current british policy, the foreign secretary Boris Johnson earlier on today told a committee of the House Of Lords that, now the policy in britain had changed, and that president assad should be permitted to run for election, as part of a democratic resolution of the syrian civil war. Thats a complete reversal of british Foreign Policy. Boris johnson himself called it, a Com Plete Johnson himself called it, a complete flip flop, but he said, the uk had been unable at any stage to fulfil its mantra that the syrian president should go. Now, by Boris Johnson saying it, it meant theresa may didnt have to, but those are pretty painful words to have to utter. There is more in the Prime Ministers speech that weve been listening to. She is challenging donald trump, particularly over nato and the un, and the i think shes signalling it will be a bumpy special relationship. Meanwhile, President Trump had other things in his mind than his meeting with mrs may. Relations between the us and mexico have soured still further. Following a tweet from mr trump suggesting their meeting next week should be scrapped, the mexican president retaliated by cancelling it. The row centres on President Trumps plans to build a wall along the mexican border, and his repeated insistence that mexico will pay for it. Our north america correspondent nick bryant reports. Donald trumps new executive toy. Its first ride today on air force one, that potent symbol of us president ial power. But it was the cancelled travel plans of the mexican president that were wrapped the centre of a diplomatic storm. His plane will Stay Grounded after a summit between the two leaders scheduled for washington next week was abruptly called off. This Mexican Stand Off is over the great totem of the trump presidency, the wall he is determined notjust to build along the border, but also to get mexico to pay for. But in an angry speech last night, the countrys president , enrique pena nieto, said he wouldnt foot the bill. So shortly before leaving the oval office this morning, donald trump decided to conduct his diplomacy by tweet. If mexico is unwilling to pay for the badly needed wall, then it would be better to cancel the upcoming meeting. By the time he spoke in philadelphia, the time he spoke in philadelphia, the mexicans had announced the summit was off, and that earned a Public Scolding from President Trump. The president of mexico and myself have agreed to cancel our planned meeting scheduled for next week, unless mexico is going to treat the United States fairly, with respect, such a meeting would be fruitless and i want to go a different route. Almost a week into his term in office its already becoming clear that donald trump is changing the presidency more than the presidency is changing him. On prime time tv last night, the former property tycoon gave a tour of the countrys most prized piece of real estate and it was vintage donald trump. I dont want to change too much. I can be the most president ial ever, other than possibly the great abraham lincoln, all right . Buti can be the most president ial person. Hes still obsessed with the crowd size that his inauguration. But in a new interview with fox news, he turned his attention to the Group Calling itself islamic state, saying its fighters were thick and demented. The people we are going against, they dont wear uniforms, they are sneaky, dirty rats. And they are sneaky, dirty rats. And they blow people up in a shopping centre. And they blow people up in a church. These are bad people. The presidency is travelling at a hurtling pace. The late breaking news tonight, that is now calling for a 20 tax on mexican imports to pay for the wall. Donald trump is clearly revelli ng in pay for the wall. Donald trump is clearly revelling in his seat of power, whether its in the oval office, or at 30,000 feet. Beautiful, great plane. Nick bryant, bbc news, washington. Lets talk to our North AmericanAuditorjon Sopel our North AmericanAuditorjon Sopel, at the white house. Its difficult to keep up with events. Theres the tax with mexico, Executive Orders, hes picking fights with mexico. There are the announcements that they have anticipated and planned for, and theres what they call in the white house, stray voltage, where things havent gone quite exactly to plan, and theres been a lot of that today. Youve had the top team at the state department, Civil Servants resigning en masse, youve had all manner of other things as well, the row over torture with the Republican Leadership distancing themselves from him, youve had the concern over him signing an Executive Order looking into electoral fraud, over him signing an Executive Order looking into electoralfraud, even though the evidence is very scant on that, and indeed, so much so that a p pa re ntly that, and indeed, so much so that apparently one of the reasons donald trump believes that, he was told it was so by the german golfer bernhard langer. These are some of the things that are moving donald trump in a certain direction. On top of that weve had the mexican president announcing that hes not going to come to washington after all. There seem to be limits on twitter diplomacy. Lets talk about the meeting with theresa may tomorrow. What reception is she likely to get there . I think shes going to get a very warm reception. I thought what was notable about her speech was how loudly she proclaimed her closeness and was very subtle about the differences, as laura was saying, that she has with this administration. But this is all about trade, and getting a deal, if and when britain leads the single market, which seems to becoming more and more certain. The thing you have to ask is, who needs that trade deal more . Donald trump, ortheresa to ask is, who needs that trade deal more . Donald trump, or theresa may . Theresa may is clearly the answer to that question, which means shes going to have to tread very carefully with donald trump, who may be offering her all sorts of nice things, but there may be trapped in there as well. Jon sopel at the white house, thank you. Here in the uk, strong Consumer Spending helped the economy grow faster than expected at the end of last year. Figures show it grew by 0. 6 in the october to december period. It means the british economy expanded by two per cent last year, confounding predictions from some economists that there would be an immediate slowdown after the brexit vote. The chancellor Philip Hammond said the figures show the economy is robust, but warned there could be a period of uncertainty ahead, as our economics editor kamal ahmed reports. It was napoleon who famously and sarcastically called us a nation of shopkeepers, and the government will be pleased today the uk economy is still one based on consumers and the high street. Britains services sector, 80 of the economy, was the reason for the positive growth figures. For shoppers in reading, it was Good Business as usual. A lot of people thought that the referendum and the vote to leave the eu would mean consumers might be nervous, what does the future hold . And would stop spending. Did you find that was true . No, i havent seen any difference personally. I think Consumer Spending will maintain itself and, long term, i think we are in for a good ride. I think we are in a terribly unstable situation, i really do. We have got nothing that is filling us with confidence. Instability, lack of confidence. They drove a myriad of warnings before the referendum. There would be a hit to the value of peoples homes, at least 10 , and up to 18 . Material slowdown in growth, notable increase in inflation. Higher prices, less growth means less jobs, so higher unemployment. We are indeed a nation of shoppers and, frankly, those gloomy predictions before the referendum havent come to pass. Consumer confidence is still strong, Business Confidence is still strong, but with inflation rising and britain actually still to start the process of leaving the eu, which of course we havent done yet, will that confidence remain . The Chancellor Meeting Apprentices at microsoft, near re