Yoram Hazony is right: the Brexit vote in Britain is a sign that the post-World War II era has come to an end. Another sign, this time in the United States, is the failure of the conservative establishment to prevent Donald Trump’s capture of the Republican nomination; still another sign is the unpopularity of Hillary Clinton. All in all, the right-left contest that defined the postwar decades is being eclipsed by a politics in which establishment powers coalesce to fend off anti-establishment challengers.