Why do you think most of this book is told in present tense?

MacArthur had an accomplished military career by this point, but Harry Truman seems to have decided early on that he could not be trusted. Yet, MacArthur not only maintained his position, but was placed in charge of Japanese reconstruction and eventually the mission to save South Korea from North Korea's invasion. If Truman saw trouble in MacArthur, this prompts the question of why the general was not removed sooner.