Franklin Roosevelt actually said...
By virtue of and pursuant to the authority vested in me by Article II, section 2, of the Constitution of the United States of America and by section 1752 of the Revised Statutes of the United States (22 U.S.C. §132), it is ordered that the Foreign Service Regulations of the United States be, and they are hereby, amended by prescribing the following as Chapter XI thereof.
11/30/1938