On Wednesday, 20 January Joe Biden will be sworn in as America’s 46th president of the United States, after scoring a record-breaking victory on his third attempt at winning the White House. After 36 years in the Senate, and Barack Obama’s VP for eight more, Joe Biden is Washington Man epitomised – though has always presented himself as the common man. BBC special correspondent James Naughtie charts Joe Biden’s blue-collar roots and political career, and asks what can he and the Democratic Party offer America, following one of the most divisive periods in American history.