New York Magazine's John Heilemann appeared on Last Word with Lawrence O'Donnell to again discuss Newt Gingrich's fast-imploding presidential candidacy. "One of the things that's happened this week is we've realized just how shallow the reservoir of affection and respect is for Newt Gingrich ... in the Republican Party," said Heilemann. And Gingrich's failures leave ... Michelle Bachmann as a viable Republican candidate? Bachmann's currently reading Heilemann's book Game Change, of which she had this to say: "Game Change is a book that is very difficult to put down, at least I found it difficult to put down, and it gives a person pause. But the other thing that it does, I think, is it informed me of what I don't want to do." But it's unclear whether Bachmann was referring to a presidential candidacy in that or not.