'A wake-up call for the nation': Joe Biden addresses the killing of George Floyd – video

Joe Biden has addressed the killing of George Floyd and the protests that his death has sparked. During a speech in Philadelphia, the Democratic presidential candidate said Floyd’s last words, 'I can’t breathe', were a 'wake-up call for our nation'. Biden also sought to draw a clear distinction between himself and Donald Trump, saying the US president was 'part of the problem'