If,
at the time fixed
for the beginning
of the term
of the President,
the President elect
shall have died,
the Vice President elect
shall become
President.
If a President
shall not have been chosen
before the time fixed
for the beginning
of his term,
or
if the President elect
shall have failed
to qualify,
then the Vice President elect
shall act
as President
until a President
shall have qualified;
and the Congress
may by law provide
for the case
wherein
neither a President elect
nor a Vice President elect
shall have qualified,
declaring
who shall then act
as President,
or the manner
in which one
who is to act
shall be selected,
and such person
shall act accordingly
until a President
or Vice President
shall have qualified.