Barack Obama's big win in South Carolina provides confirmation that "change" is yesterday's story:

"The heightened anxiety about the nation's economy was at the center of voters' focus. More than twice as many voters there said the economy was the most important issue facing the country than said health care or the war in Iraq, according to the early results of an exit poll conducted throughout the state by Edison Media Research and Mitofsky International for the National Election Pool."

That's the word from this hour's New York Times story.