WION Wideangle: Jill Biden joins the first ladies club

As the First Lady of the United States (FLOTUS), Professor Jill Biden plans to continue working full-time as a teacher. Will the 69-year-old transform the role of the First Lady? Who have been the most influential leading ladies of the White House? We look at how the role of the U.S President's spouse has changed and evolved on 'The First Ladies Club', a Wion Wideangle special.