He was being challenged for the leadership position, wasn't he? And he just quit, the end.
Newt's not dumb by any stretch and getting out front now, before he announces ( if he's going to announce ) is pretty smart.
Let the media have a small run with this and later he can say everyone knows, I admitted it twice now, once in 1998 and now in 2007, twice in a decade publicly, when is enough ..enough?