-
Now Playing: William Barr to face questions over Mueller report
-
Now Playing: Mueller expressed frustration with Barr
-
Now Playing: 'In every way, this is more significant than Watergate': House Intel Chairman Schiff
-
Now Playing: Kamala Harris breaks barriers to become 1st female vice president
-
Now Playing: Biden hopes to repair relationship between White House and the media
-
Now Playing: Biden to challenge Trump’s foreign policy of ‘America first’
-
Now Playing: Joe Biden’s journey to the White House
-
Now Playing: President-elect Joe Biden outlines top priorities for new administration
-
Now Playing: President-elect Joe Biden vows to ‘restore the soul of America’
-
Now Playing: Amid pandemic, White House gets deep cleaning before handover
-
Now Playing: States nationwide on guard for Inauguration Day threats
-
Now Playing: The Rundown: Top headlines today: Jan. 19, 2021
-
Now Playing: By the Numbers: Biden’s historic Cabinet picks
-
Now Playing: ABC News Live Prime: Tuesday, January 19, 2021
-
Now Playing: Incoming President Joe Biden’s ambitious Day 1 agenda
-
Now Playing: Sen. Menendez: ‘Our democracy prevails’ with a ‘peaceful transfer of power’
-
Now Playing: 2 National Guard servicemen in DC sent home after links to extremist groups
-
Now Playing: Trump releases recorded video message on his last day as president
-
Now Playing: Biden prepares for the inauguration, delivers emotional farewell to Delaware
-
Now Playing: Did Trump change the rules of politics? | FiveThirtyEight Politics Podcast