Biden to pass torch to Kamala Harris at Democratic National Convention

US President Joe Biden will give a bittersweet farewell address at the Democratic National Convention in Chicago on Monday, passing the torch to Kamala Harris as the party's nominee for November's election. Less than a month after his stunning withdrawal and Harris's astonishing ascent, Biden can expect a hero's send-off from many of the same people who helped push him out due to concerns about his age.