Why Is This Happening?

Each week on Why Is This Happening, MSNBC's Chris Hayes is joined by uniquely qualified guests to dig deeper into today's most pressing issues. Fans are loving what they're hearing and I love that Chris isn't afraid to not know the answer to the things he's asking about. There are over 7 billion people in the world but how many of us have the same father? Our team will analyze the results and reveal if Herschel Walker is your dad.