'Eliminate the vitriol': Biden defines 'unity'

"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.