In November 2014, thirteen members of the Biden family gathered on Nantucket for Thanksgiving, a tradition they had been celebrating for the past forty 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 fifteen months earlier, and his survival was uncertain. "Promise me, Dad," Beau had told his father. "Give me your word that no matter what happens, you're going to be all right." Joe Biden gave him his word. Promise Me, Dad chronicles the year that followed, which would be the most momentous and challenging in Joe Biden's extraordinary life and career. This is a book written not just by the vice president, but by a father, grandfather, friend, and husband. Promise Me, Dad is a story of how family and friendships sustain us and how hope, purpose, and action can guide us through the pain of personal loss into the light of a new future.