which president had to retake the oath because of a mistake?
Chief Justice John Roberts readministered the oath to the president in front of reporters at the White House. Barack Obama: Barack Obama retakes oath after mistakes at inauguration. The White House counsel said in a statement read by a spokesman the oath was administered a second time out of an abundance of caution.. We believe that the oath of office was administered effectively and that the President was sworn in appropriately yesterday, said White House Counsel Greg Craig.