Barack Obama has formally accepted the US Democratic party nomination for the White House.
Tens of thousands crowded into a football stadium in Denver to hear him speak, 45 years to the day after Martin Luther King gave his “I have a dream” address.
Saying the nation was standing at a defining moment, Obama promised to reverse the economic failures of the past eight years and to restore America’s reputation in the world.
“With profound gratitude and great humility, I accept your nomination for the Presidency of the United States,” he said.
He rebutted the argument that Democrats are weaker on national security than Republicans and that he himself represents a risk as President.
“If John McCain wants to have a debate about who has the temperament and the judgement to serve as the next Commander in Chief, that’s a debate that I’m ready to have,” he continued.
Barack Obama promised tax cuts for workers and an end to dependence on Middle Eastern oil in a decade.
But he said a renewed sense of common purpose was crucial to bring about change.
“America, we can not turn back, we can not walk alone at this moment, in this election. We must pledge once more to march into the future. Let us keep that promise, that American promise.”
After the rhetoric, now comes the hard slog.
Obama has little over two months to convince voters that the man, who, when he arrived at the 2004 Democratic convention was a little-known state legislator from Illinois, is now ready for the Oval Office.