Well, that makes one person.

(CNN) — President Barack Obama addressed via video conference several Democratic caucus sites in Iowa Tuesday, four years after winning the state’s contest in a surprise victory that fueled his campaign on a path to the nomination.

“We’ve still got a lot of work to do. But think about the change that was accomplished because of those caucuses four years ago,” Obama said.

Among the accomplishments he listed since taking office, Obama touted the withdrawal of troops from Iraq, the passing of health care reform and the repeal of “Don’t Ask, Don’t Tell.”

The president joked that he has since grown more “gray” but said he’s more optimistic about the ideas of “hope and change” that he trumpeted in his last run.

“We’ve already seen change take pace,” Obama said. “2012 is about reminding the American people how far we’ve traveled.”

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