National security is the most important responsibility of the president as commander-in-chief. The president’s role is to protect the American people against external threats and to provide for the safety and security of the country. This requires attention to foreign policy and working with allies to keep dangerous foes at bay. Sadly, President Donald Trump does not appear to see the world this way. According to the anonymous Trump administration official who authored the book A Warning , Trump seems not to see a security threat from such places as Russia or China, which is likely to be a key player in a new Cold War. Trump seems to have abandoned the century-long consensus about America’s role as a leader of the free world, and he pays little attention to advisers. The president appears to think he can accomplish what he seeks in foreign policy by the sheer force of his personality and the establishment of personal relations with foreign leaders. One chapter in A Warning that should