Jason Kander seemed on top of the world. Elected to Secretary of State of Missouri in 2012, he was the youngest millennial statewide elected official, an army veteran, and a husband and father with a young family. But he gave all of that up in 2018 when he announced he was stepping away from private life to address his untreated PTSD and depression. In this intimate conversation, Joe talks to Jason about his new book, "Invisible Storm," and they ponder what might come next.