I understand that the political pundits are worried about Donald Trump’s increasingly erratic behaviour and gloomy temperament. His recent attack on Canada’s prime minister, – sorry, that’s Justin Trudeau – is just the latest manifestation of his ill temper. 

Justin Timberlake danced his way through a club-inspired Super Bowl halftime show Sunday as he paid tribute to Prince in the late singer's hometown with a towering yet tasteful projection.