In November 2014, 13 members of the Biden family gathered on Nantucket for Thanksgiving, a tradition they had been celebrating for the past 40 years. It was the one constant in what had become a hectic, scrutinized and overscheduled life. The Thanksgiving holiday was a much-needed respite, a time to connect, a time to reflect on what the year had brought and what the future might hold. But this year felt different from all those that had come before. Joe and Jill Biden's eldest son, Beau, had been diagnosed with a malignant brain tumor 15 months earlier and his survival was uncertain. PROMISE ME, DAD chronicles the year that followed, which would be the most momentous and challenging in Joe Biden’s life and career.