“A rupture in the world order.” Canadian Prime Minister Mark Carney did not mince his words in his recent special address at the World Economic Forum in Davos, Switzerland. He noted that we now live in a world where “the large, main power … is submitted to no limits, no constraints.” This is a frightening prospect for the vast majority of the world’s countries, which seek stability not only in their relationships with the United States but also with China. Yet even as the United States has