David Muir On His New Dog

Teacher, author and former Second Lady of the United States, Dr. Jill Biden, is taking a break from the campaign trail to talk about her new book and share her family's holiday tradition – the Biden ice cream sundae bar! Then, "World News Tonight's" David Muir is back — and dishing on his new dog. (SO cute!) In the kitchen, Rach is making fried rice you can serve with literally anything and everything!