 That all seemed to change when they met during the D-Day London's anniversary. It was just a small gathering, but he said the president didn't seem to recognise him. And he added that Joe Biden's once irrepressible force of energy, vitality and wit were flickering and that he should step down. We heard from the campaign chair, Jen O'Malley Dillon, saying that Mr Biden has no intention of stepping aside. Is this still a decision that only Mr Biden can make?