‘We have a right to be mad’ – son of Buffalo victim speaks

President Biden has visited the scene of this weekend’s racially motivated mass shooting in Buffalo, New York – declaring that “in America, evil will not win – white supremacy will not have the last word”.

At a makeshift memorial for the ten people who died – he described the attack as terrorism, and warned that American democracy itself was in peril. Our Washington correspondent Siobhan Kennedy is in Buffalo now: