At over a thousand pages Robert A.Caro’s biography of Lyndon B. Johnson is a hefty wedge of American history. We know power corrupts, but Caro also argues ‘power reveals’. We’re aware of that iconic picture of Jackie Kennedy standing with the former Vice President of the United States and now President, Lyndon Johnson. Power reveals. (But that was later, volume 4, the new Senator John F. Kennedy only makes a brief appearance, in volume 3, his...