She knows that every month that passes before she announces her run is another month that her family doesn't have to suffer the blades and arrows that will materialize the second she goes public.
She and her family are made of some of the toughest American steel ever forged, and the crucible of media heat in which it was formed is without question the hottest I have seen in six decades of scrutinizing the American political furnace.
Remember, too, that unlike many of the other candidates, and in diametric juxtaposition to the Misleadia weasels who concoct their vileness, Sarah and her family are protected by a prayer shield offered up by millions of Christian Americans, and they are surrounded by an army of God's own angels.
"For if I am for him, who shall stand against him?"
:^\
1) It's God's will for her to be POTUS (This would tell me that God is not yet done with America. How can He not be done with a country that continues to slaughter over 50 million unborn ("the slaughter of the innocents")?) and
2) She's willing to pay the price and let others including her family pay the price for doing God's will. (Others always pay a price when we do God's will, but we must put them in His hands where they're better off than they would be otherwise.)
God Bless.