Prince Harry and Meghan Markle's claim that a member of the royal family expressed concerns about their son Archie's skin tone — and according to royal expert Katie Nicholl, Buckingham Palace now has «no choice» but to respond. In an interview with ET's Kevin Frazier about Meghan and Harry's bombshell sit-down with Oprah Winfrey, Nicholl said Queen Elizabeth II and the royal family are taking the couple's allegations — particularly about racism — very seriously. «The queen's mantra has always