abraham lincoln al gore andrew jackson barack obama benjamin harrison bill clinton david rice atchison election franklin pierce general services administration george washington governor grover cleveland herbert hoover inauguration ipso facto james buchanan james madison james monroe jimmy carter john adams john quincy adams joint session of the united states congress martin van buren mayor oath of office outgoing president president president of the united states presidential transition prime minister-elect richard nixon ronald reagan speaker of the house of representatives thomas jefferson twelfth amendment to the united states constitution twentieth amendment to the united states constitution united states united states constitution united states secret service william harrison william mckinley woodrow wilson zachary taylor