<Ul> <Li> XI </Li> <Li> XII </Li> <Li> XIII </Li> <Li> XIV </Li> <Li> XV </Li> <Li> XVI </Li> <Li> XVII </Li> <Li> XVIII </Li> <Li> XIX </Li> <Li> XX </Li> <Li> XXI </Li> <Li> XXII </Li> <Li> XXIII </Li> <Li> XXIV </Li> <Li> XXV </Li> <Li> XXVI </Li> <Li> XXVII </Li> </Ul> <Tr> <Th> Unratified Amendments </Th> </Tr> <Tr> <Td> <Ul> <Li> Congressional Apportionment </Li> <Li> Titles of Nobility </Li> <Li> Corwin </Li> <Li> Child Labor </Li> <Li> Equal Rights </Li> <Li> D.C. Voting Rights </Li> </Ul> </Td> </Tr> <Ul> <Li> Congressional Apportionment </Li> <Li> Titles of Nobility </Li> <Li> Corwin </Li> <Li> Child Labor </Li> <Li> Equal Rights </Li> <Li> D.C. Voting Rights </Li> </Ul>

Which action of the president as head of state is mentioned in the constitution