Black.
BloombergBusinessWeek. Also of interest, here.
_________UPDATE_________
More MinnPost, about worse than it looks; here. Eric Black again reporting. Gingrich characterized by the book authors as roughly a political equal to the one ape with the bone in the opening Dawn of Man scene in 2001 - Space Odyssey. But Newt touched an evil obelisk, not one within a sequence of mystic advancement.