Ben Sasse’s biggest regret

Facing death from stage 4 pancreatic cancer, Former Sen. Ben Sasse shares with CNN's Jake Tapper his life's biggest regret: time he missed with his wife and three kids while traveling for his career. Watch the rest of his interview on CNN's "The Whole Story With Anderson Cooper: Ben Sasse is Going Home: Lessons on Life and Death," Sunday, July 26, at 8pm ET.