The late Robert Jordan used the expression “Let the lord of chaos rule” in his fantasy epic The Wheel of Time. For the Trump White House that seems to be standard operation procedure. Willy nilly, the rest of the world follows in its trail. With a mercurial president whose attention swings from the Stormy Daniels scandal to Russian electoral interference to North Korea’s nuclear programme, and Twitter as the preferred medium for policy leads, no one knows what comes next or why it con