Barack Obama steps back into public spotlight: 'So what's been going on?'

Barack Obama returned to the public stage on Monday with some wry jokes, a smart-casual outfit, and a pledge to direct his post-presidential energy to nurturing the next generation of leaders. Speaking at the University of Chicago in his adopted home town, the former US president was relaxed and in good humour, like a man who has been on a long holiday, which he has. There was laughter from an audience of community organisers, activists and students, a group unlikely to contain many supporters of Donald Trump, who has made groundless claims of wiretapping against his predecessor and whose 100th day in office is on Saturday.