"Unity requires you to eliminate the vitriol," Biden said. "I'm optimistic that it may take some time. But over the year, if we treat each other with respect -- we're going to argue like hell, I'm confident of that. Believe me, I've been there. But I think we can do it in a way that we can get things done for the American people."
Biden was taking questions from reporters after signing his executive action on a 'Made in America' initiative.