Royal expert Katie Nicholl chats with ET about King Charles' desire to reconcile with his son, Prince Harry, following his cancer diagnosis. Katie explains, the King may make plans to meet with Harry when the Duke of Sussex travels to the UK for the 10th anniversary of the Invictus Games, but she does not think Harry will reunite with Prince William or Kate Middleton during the visit. Katie also discusses Harry and Meghan Markle's plans to travel to Nigeria with their children, Archie and Lilibet, and reacts to the King's announcement that he will become the Patron of Cancer Research UK.