President-elect Obama won 52 percent of the popular vote, the largest share for a Democrat since Lyndon Johnson won in 1964.
But more importantly, Obama expanded Democratic support among key voter groups including Hispanic-Americans, women, young people and suburbanites.
Democratic pollster Stanley Greenberg has been examining who voted for Obama in the election and why.
"Latino, African-American, Asian, the diverse country that is increasingly diverse from the lowest ages up, and which helped give us this new politics," he said. "It is not an identity politics. It is a new diverse country that is rallying the kind of message and leadership that Obama represented and the Democratic Party has represented in these elections..."
