In the U.S. presidential contest's final frenzied weekend, a confident Barack Obama promised to heal America's political divisions, the Associated Press reported.
For Obama, it was a time for soaring rhetoric and forays deep into Republican territory, buoyed by record campaign donations and encouraging poll numbers.
"We have a righteous wind at our back," he said Saturday of his bid to become the first black American president.
"If you give me your vote on Tuesday, we won't just win this election - together, we will change this country and change the world," Obama said Saturday in a nationwide Democratic radio address.
He hammered away at his campaign themes, promising tax breaks for families, lower health care costs and an end to the Iraq war.
He also sought to saddle McCain with the record of President George W. Bush, who has avoided Republican campaign events apparently because of his low approval ratings.