An American idol

As Trump administration battles crisis after crisis emerging from the President's loose tongue, Obama's golden oratory on the show is a reminder why he was, and is, so loved and admired by Americans

Late-night television in the US has undergone a definitive shift over the recent past. Many storied names such as David Letterman and Jon Stewart hung up their boots, to be replaced by new stars like Trevor Noah and Samantha Bee. What has also shaped the changing nature of late-night TV, traditionally a liberal bastion, is the presidency of Donald Trump, whose politics and personal style provide ready fodder for the gags typical of the genre.
 
Mr Letterman retired from late-night television two years ago, and spent this time travelling and growing a substantial beard. He has now returned for