"Four years ago, I stood before you and told you my story - of the brief union between a young man from Kenya and a young woman from Kansas who weren't well-off or well-known, but shared a belief that in America, their son could achieve whatever he put his mind to.
"It is that promise that has always set this country apart - that through hard work and sacrifice, each of us can pursue our individual dreams but still come together as one American family, to ensure that the next generation can pursue their dreams as well.
"It is why I stand here tonight. Because for two hundred and thirty two years, at each moment when that promise was in jeopardy, ordinary men and women - students and soldiers, farmers and teachers, nurses and janitors -- found the courage to keep it alive.
"We meet at one of those defining moments - a moment when our nation is at war, our economy is in turmoil, and the American promise has been threatened once more.
"Tonight, more Americans are out of work and more are working harder for less. More of you have lost your homes and more are watching your home values plummet. More of you have cars you can't afford to drive, credit card bills you can't afford to pay and tuition that is beyond your reach.
"These challenges are not all of government's making. But the failure to respond is a direct result of a broken politics in Washington and the failed presidency of George W. Bush.
"America, we are better than these last eight years. We are a better country than this."