Jenna Bush Hager and twin sister Barbara Bush dish on their new children's book "The Superpower Sisterhood," Jenna's two-year-old finally getting out of diapers, and their dad, George W. Bush's nickname for Barbara's six-month-old daughter, Cora. Jenna and Barbara also surprise Kelly with a 40th birthday basket, including official Dallas Cowboys Cheerleader boots and pompoms, Harry Potter-style readers, a Texas-inspired Aerosmith t-shirt, and emergency tweezers.