For the first year of the Trump Administration, the Washington D.C.- based denizens of the U.S. foreign policy establishment assured themselves that although Donald Trump had tipped over the geopolitical apple cart, everything broken could be put back into place without undue difficulty. They were wrong. Taking their cue from the caustic reactions of American allies to Trump's twin summit debacles, foreign policy elites on both sides of the aisle are now a chastened bunch--only too aware of the immense damage Trump is doing to the fabric holding together America's alliances, the de jure and...