Thus it appears, from an examination of the original Constitution and the amendment, that the most ample provision is made for filling the executive office, in all contingencies but one. If the electors fail to choose according to the rule prescribed for them, the election devolves on the House of Representatives. If that body does not choose a President before the fourth day of March next ensuing, the office devolves on the Vice-President elect, whether he has been chosen by the electors or by the Senate. But if the House of Representatives fail to choose a President, and the Senate make no choice of a Vice-President, or the Vice-President elect dies before the next fourth day of March, the Constitution makes no express provision for filling the office, nor is it easy to discover in it how such a vacancy is to be met. The Constitution, it is true, confers upon Congress authority to provide by law for the case of removal, death, resignation, or inability of _both_ the President and Vice-President, and to declare what officer shall then act as President; and it provides that the officer so designated by a law of Congress shall act accordingly, until the disability be removed, or a President shall be elected. But there is every reason to believe that this provision embraces the case of a vacancy in both offices occasioned by removal, death, resignation, or inability, not of the President and Vice-President elect, but of the President and Vice-President in office. It may be doubted whether the framers of the original Constitution intended to provide for a vacancy in both offices occasioned by the failure of the House of Representatives to elect a President and the death of the Vice-President elect, or a non-election of a Vice-President by the Senate, before the fourth day of March. Their plan was in the first instance studiously framed for the purpose of impressing on the electors the duty of concentrating their votes; and although they saw and provided for the evident necessity of an election of a President by the House of Representatives, when the electoral votes had not produced a choice, they omitted all express provision for a failure of the House to choose a President, apparently for the purpose of making the States in that body feel the importance of the secondary election, and the duty of uniting their votes. This omission was supplied by the amendment, which authorizes the Vice-President elect to act as President, when the House of Representatives have failed to choose a President, "as in the case of the death or other constitutional disability of the President." This adoption, for the case of a non-election by the House, of the mode of succession previously established by the Constitution, shows that the authority which the Constitution gave to Congress to declare by law what officer shall act as President, in case of a vacancy in both offices, was confined to the removal, death, resignation, or inability