“Life, liberty and the pursuit of happiness” was a radical concept for the Founding Fathers. How did they get there? Walter Isaacson joins host Krys Boyd to discuss how one sentence in the Declaration of Independence set out a promise of America, how Thomas Jefferson, Benjamin Franklin and John Adams wrestled with its crafting, and how we can still use these words as our common values in a polarized nation today. His book is “The Greatest Sentence Ever Written.”