Barely two weeks have been enough for the whole world to come to wonder whether Donald Trump will be able to see out the four years of his presidential term of office. Two short weeks have been long enough to realise that, though he has become the president, he remains the reality TV showman and is still the same person who stated in his 2004 book, “How to get rich: Big deals from the star of the Apprentice”: “Sometimes people are surprised how quickly I make big decisions, but I’ve...