A once-in-a-generation challenge for a 'once-in-a-generation intellect'. America’s new national security advisor, Jake Sullivan, is facing some unique battles. Action is needed both domestically and internationally: the past decade has created deep divides in the US whilst the competitive threat of China is more prominent than ever before. But for many, Sullivan's biggest test will be creating a foreign policy for the middle class. In this comprehensive analysis, Elise Labott examines whether he is up to the task of recovering a country left in turmoil.