How has King Charles's daughter-in-law, Meghan Markle, left an impact on the monarch? Have her dissatisfactions with the Royal Family made him dig his heels in about this institution, or has she helped him think of a different way to move forward as a modern king? Tom Jennings, the director of the National Geographic film, "Charles: In His Own Words," studied a lifetime of archival footage of the king. Jennings tells Salon why he thinks Meghan and Harry have "probably lit a fire under Charles" about evolving the monarchy, and perhaps, pushed him to accelerate the process. Jennings explains why Meghan's relationship is symbolic and what Charles hopes for his own future. Watch the full interview here: https://youtu.be/yJF-0LVOI_s