Joseph Robinette Biden Jr. took oath as the 46th President of the United States on Wednesday. He was administered the oath of office and secrecy by Supreme Court Judge Justice John Roberts. Kamala Harris, breaking the glass ceiling, was sworn in as the 49th vice-president. She was sworn in by Supreme Court Judge Justice Sonia Sotomayor. 'Democracy has prevailed' said Biden in his opening remarks after the swearing-in ceremony