For the first time, Obama is leading in Iowa according to polling average.

This party - the party of Jefferson and Jackson; of Roosevelt and Kennedy - has always made the biggest difference in the lives of the American people when we led, not by polls, but by principle; not by calculation, but by conviction; when we summoned the entire nation to a common purpose - a higher purpose. And I run for the Presidency of the United States of America because that's the party America needs us to be right now. A party that doesn't just offer change as a slogan, but real, meaningful change - change that America can believe in.

That's why I'm in this race. I am in this race to tell the corporate lobbyists that their days of setting the agenda in Washington are over. I have done more than any other candidate in this race to take on lobbyists - and won. They have not funded my campaign, they will not get a job in my White House, and they will not drown out the voices of the American people when I am President.