 According to Fall, Diệm put the revolution down because he thought it could not sweep out the French, but might threaten the leadership of the mandarins.In 1933, with the ascension of Bảo Đại to the throne, Diệm accepted Bảo Đại's invitation to be his interior minister following lobbying by Nguyễn Hữu Bài.Soon after his appointment, Diệm headed a commission to advise on potential administration reforms.