President Barack Obama has said he sees Vice President Joe Biden as family. In an interview with CNN that aired Monday night, Biden revealed a conversation that he had with Obama that proves how close their relationship is. During a weekly lunch, Biden told Obama that he was worried about caring for Beau Biden's family without his son's salary as Delaware's attorney general. "He got up and he said, 'Don't sell that house. Promise me you won't sell the house,'" Biden told CNN's Gloria Borger.