Stacey Abrams reflects on campaign loss Video

Now Playing: Who is Stacey Abrams?

Now Playing: Oprah Winfrey to campaign for Stacey Abrams in Georgia

Now Playing: Stacey Abrams calls Brian Kemp the ‘victor’ in Georgia’s governor’s race

Now Playing: Supreme Court agrees to hear 2020 census citizenship question case

Now Playing: Trump declares national emergency in the Rose Garden

Now Playing: Jimmy and Rosalynn Carter captured on kiss cam

Now Playing: US sanctions top Venezuelan security officials as Maduro digs in

Now Playing: White House press secretary Sarah Sanders says she was interviewed by Mueller team

Now Playing: President Trump declares national emergency and claims $8 billion to secure border

Now Playing: Stacey Abrams reflects on campaign loss

Now Playing: Trump declares national emergency over border wall funding

Now Playing: SPECIAL REPORT: President Trump declares national emergency for border wall funding

Now Playing: President Trump declares national emergency for border wall funding

Now Playing: Trump is expected to declare a national emergency

Now Playing: ‘Start Here’ podcast: Trump to declare national emergency

Now Playing: Trump’s emergency declaration to spark legal challenges

Now Playing: Trump to declare national emergency for border wall

Now Playing: Andrew McCabe speaks out for the first time after being fired from FBI

Now Playing: Susan Collins ‘disappointed’ Trump will declare national emergency

Now Playing: Trump to sign border bill and declare national emergency