Joe Biden has said the “soul of America is at stake” in his first official address to the US since his shock drop-out from the Presidential race on Sunday. Reading from a teleprompter in the White House just after 8pm local time (1am in the UK), the 81-year-old outgoing Commander-in-Chief said it had been the “honour of his life” to serve as President. Some excerpts of his speech had been released in advance, but the President appeared to somewhat stumble through his words. Though Biden has suffered with a stutter since childhood, he still tailed off on some phrases as he made his way through …