The toxic cloud over this Ryder Cup, with noxious taunts raining down on Rory McIlroy and even his blameless wife, did not emerge from a clear blue New York sky. To do so, they had to withstand a monumental US fightback, with the eventual outcome far closer than anyone had anticipated. US President Donald Trump and American golfer Bryson DeChambeau at the Ryder Cup. At moments like these, you are reminded of the fact that more than half of Americans do not possess a passport. The bone-headedness filters down from the top, with Bradley making no effort here to call off the mob.