The Obama campaign has backtracked from a remark by Michelle Obama, that the candidate has to win Iowa. But it turns out that a Obama's campaign manager accidentally said the same thing in a new article in The New Republic:

I ran into Obama's wiry campaign manager, David Plouffe, chatting in a doorway. I mentioned to Plouffe that I had just returned from Iowa. "Iowa — that's the whole shebang!" he said. Then he paused. "I guess I'm not supposed to say that," he added with a grin. "But Iowa is very important."