In her new, intimate memoir, Cindy McCain opens up about her beloved husband, the late Sen. John McCain, their 38-year marriage, and the trials and triumphs of her life. She recently sat down with Ambassador Josette Sheeran, the McCain Institute for International Leadership’s executive chairman, to discuss the book. In “Stronger: Courage, Hope, & Humor in My Life with John McCain,” McCain recounts the struggles and joys of being a political spouse, relives their early years together and...