Watch video: 'You could be President', Kamala Harris tells her 4-year-old great-niece

Democratic Vice President nominee Kamala Harris video, where she is seen telling her great niece that "You could be President", has gone viral.

In a video posted by her niece, Meena Harris, the Democratic senator told Meena's 4-year-old daughter, Amara Ajagu, "You could be president, but not right now. You have to be over the...