Hello and welcome, if youre watching in the uk or around the world. And stay with us for the latest news and analysis from here and across the globe. Im tim willcox. The white house has officially moved to withdraw the United States from the world health organisation. It means the us would break ties with the Global Public health body at the peak of the coronavirus pandemic. Donald trump has frequently criticised the who, accusing it of covering up the coronavirus outbreak with china and failing to hold beijing to account. Our correspondent david willis joins me now from los angeles. David, he threatened to do this, the formal notification now. But a year before they can actually physically withdraw, which takes us past the election. It does, tim, and the Presumptive Democratic rival for president , joe biden, has said that he will reverse mr trump decision, and he will rejoin the who if hes elected. But mr trump of course has been highly critical of the organisation. He believes it is