-
Now Playing: Bernie Sanders Gets on Megaphone, Demands Higher Wages
-
Now Playing: Sen. Bernie Sanders: 'Medicare for all' is 'not a radical idea'
-
Now Playing: New details on President-elect Joe Biden and his transition team
-
Now Playing: President Trump refuses to concede
-
Now Playing: Presidential concession speeches through the years
-
Now Playing: It's a 'great time' for Democrats to 'hit the reset button': Yvette Simpson
-
Now Playing: 'This is a seismic shift in American politics': ABC's Rachel Scott on the election
-
Now Playing: 'This is premature ... we have not finished counting votes': South Dakota governor
-
Now Playing: Stop the fighting ... let's move on together': Gov. Andrew Cuomo
-
Now Playing: 'It's time for the president's lawyers to present the facts': Sen. Roy Blunt
-
Now Playing: Biden has 'mandate to bring us together and move us forward': Sen. Chris Coons
-
Now Playing: Trump continues to threaten legal action over election results
-
Now Playing: Cindy McCain, widow of the late Arizona senator, reacts to Biden’s win
-
Now Playing: Joe Biden’s political journey has spanned 50 years
-
Now Playing: Joe Biden's full speech after becoming president-elect
-
Now Playing: Vice President-elect Kamala Harris delivers speech ahead of Joe Biden
-
Now Playing: Americans take to streets to celebrate Biden win
-
Now Playing: Biden is set to be president. What comes next? | FiveThirtyEight Politics Podcast
-
Now Playing: When Joe Biden was a young senator at age 30
-
Now Playing: What Trump revealed about America l FiveThirtyEight