The latest ABC News/Washington Post poll showed Obama leading John McCain 53-43 percent among likely voters, largely attributed to economic concerns. No presidential candidate has come back from this large a deficit at this point in the race in polls dating to 1936. On "Good Morning America" today, Sen. Hillary Clinton predicted a "very big win" for Obama.
Biden cautioned that the race is "not over" but said that "I think we win."
"Look, as you and I know, three weeks in a presidential campaign is three lifetimes," he said. "But I think that unless Gov. Palin and Sen. McCain start to engage head-on the debate about what to do about the economy, about how we're going to change things … I think it's going to be uncomfortable but I think it's -- I think we win.
"But there's a lot to debate," Biden added. "There's a lot at stake, and people make up their mind later and later and later, as you know. You've been covering presidential elections. So I don't think it's over. But we feel good."
Biden said that while "race is an issue in America," he doesn't think that it will affect the election.
"I think whatever negative flows from the fact that Barack Obama's the first African American to be elected president, I think that it is more than made up for by the overwhelming counterenthusiasm to the fact that this guy is a uniting figure. So I think the end of the day politically, I don't think it's going to -- I don't think it's going to have any effect in the outcome of the election."