Answer:

president

Answer	Crossword Clue
PRESIDENT	Jackson or Johnson
PRESIDENT	Pierce, e.g.
PRESIDENT	Eponymous figure in four state capitals' names

PRESIDENT	White House boss
PRESIDENT	Head of the nation.
PRESIDENT	1952 question mark.
PRESIDENT	Person most affected by the 22d Amendment.
PRESIDENT	Magsaysay, for instance.
PRESIDENT	Voters' choice.
PRESIDENT	Ben-Zvi, for example.
PRESIDENT	Subject of Article II of the Constitution.

PRESIDENT	Business executive.
PRESIDENT	Last word of Henry Clay aphorism.
PRESIDENT	Taylor or Grant.
PRESIDENT	Theodore White's subject.
PRESIDENT	Top job.
PRESIDENT	Question mark of 1968.
PRESIDENT	Top man
PRESIDENT	Taylor or Tyler

PRESIDENT	Head of a republic
PRESIDENT	U.S.A.'s CINC
PRESIDENT	Madison or Grant
PRESIDENT	Nicholson role in "Mars Attacks!"
PRESIDENT	"My family comes first"
PRESIDENT	"My family is first"