“I think of him all the time.” President Biden speaks about his late son, Beau, and says he still asks himself when facing a hard decision, “What would Beau do?” He also tells the story of how, near the end of his life, Beau told him not to quit politics: “Give me your word as a Biden. When I go, you’ll stay engaged.” | CBS Sunday Morning

A tearful Joe Biden honors his late son, Beau Biden, before heading to Washington to be sworn in as the 46th president of the United States. "I only have one regret— that he's not here. Because we should be introducing him as president." http://abcn.ws/3irNcjP | ABC World News Tonight with David Muir