The US president, with an energy matched only by his narcissism, places himself at the centre of world affairs in a way no other human being has ever done. For many commentators, this has resulted in Trump derangement syndrome. This commentator tries hard to avoid that syndrome, and ignores many of Donald Trump’s pronouncements, most of which amount to crude attention-seeking gestures with little significance in the broader scheme of things. But there are times President Trump’s actions and words are so serious that they need careful consideration. Recent weeks have seen a further deterioration in the European, and therefore…