Newt's reply to John King last night was totally disingenuous nature, the one that is getting so much airplay, that Andrew Sullivan liveblogged as "perfect". (Even this is cute, but no cigar).
The fact of the matter is that Newt wanted that question, despite saying, "No, but I will."
King is not a highly-skilled interviewer, at least not at this level, not a power-player.
Imagine how different it would have been if he had immediately cut Gingrich off and said, "Okay, then, the question is withdrawn."
This would have left it the pink elephant in the room and Newt at the hands of the rumor mills, unaided by the power of CNN.