Joe Biden says 'Maga movement' is endangering US democracy – video

Joe Biden has dramatically raised the ante in the forthcoming US presidential election campaign with an impassioned warning that US democracy is being imperilled by a vengeful Donald Trump, his likely opponent next year. 'There is something dangerous happening in America,' he told an audience in Phoenix, Arizona, on Thursday. 'There is an extremist movement that does not share the basic beliefs of our democracy: the Maga movement.' He said he did not think all Republicans ascribed to the Maga agenda, but added: 'There is no question that today's Republican party is driven and intimidated by Maga Republican extremists'

• Biden warns voters a second Trump presidency will threaten democracy