Queen Elizabeth II: Passing of the Crown – A Special Edition of 20/20

As a nation mourns its longest-reigning monarch, all eyes are on King Charles III, who will carry on his mother's legacy. As a nation mourns its longest-reigning monarch, all eyes are on King Charles III, who will carry on his mother's legacy. As a nation mourns its longest-reigning monarch, all eyes are on King Charles III, who will carry on his mother's legacy. As a nation mourns its longest-reigning monarch, all eyes are on King Charles III, who will carry on his mother's legacy.