In
his
lengthy
resignation
letter,
Chu
says
he
intends
to
stay
on
through
February
and
perhaps
beyond
then
“so
that
I
can
leave
the
Department
in
the
hands
of
the
new
secretary.”He
plans
to
return
to
"an
academic
life
of
teaching
and
research."
Obama
did
not
immediately
name
a
replacement.
Among
the
political
candidates
are
former
governors
Bill
Ritter
of
Colorado,
Christine
Gregoire
of
Washington
and
Jennifer
Granholm
of
Michigan,
former
North
Dakota
Senator
Byron
Dorgan
and
an
academic,
physics
professor
Ernest
Moniz
of
the
Massachusetts
Institute
of
Technology.
There
has
also…
