-
Now Playing: 'Election Cycle' Stops at Donald Trump and Hillary Clinton Campaign Headquarters
-
Now Playing: Trump's Battle With the Bands is Reverberating the 2016 'Election Cycle'
-
Now Playing: Election Cycle: A Journey From the RNC to the DNC
-
Now Playing: Pedaling From Trump's Podium to Hillary's: Starting Line 'Election Cycle' Speech
-
Now Playing: 'Election Cycle' Hitches a Ride With the 'Nuns on the Bus' on Route to DNC
-
Now Playing: 'Election Cycle' Smackdown: Brawl Under the Bridge
-
Now Playing: 'Election Cycle': Journey Across America
-
Now Playing: What is an executive order?
-
Now Playing: Homeland Security warns of urgent threat to elected officials, government facilities
-
Now Playing: Sen. Kirsten Gillibrand on ‘disappointing’ impeachment trial vote
-
Now Playing: Meena Harris aims to help girls unlearn stereotypes in book 'Ambitious Girl'
-
Now Playing: 45 Republicans vote to dismiss impeachment
-
Now Playing: White House officials give update on effort to combat coronavirus
-
Now Playing: ABC News Live Update: President Biden's administration focusing on climate change
-
Now Playing: ABC News Live Update: President Biden to buy additional 200 million vaccine doses
-
Now Playing: Kids and coronavirus: CDC finds "little evidence" of transmission in schools
-
Now Playing: Confirmation hearing begins for UN ambassador
-
Now Playing: Senator tapped to lead impeachment hearings hospitalized
-
Now Playing: Sen. Murphy on COVID relief: ‘We don’t have the luxury of time’
-
Now Playing: Biden announces purchase of more doses of Pfizer, Moderna vaccines