Now Playing: JPMorgan Chase CEO says US in a ‘trade skirmish’ with China: ‘It’s not a trade war.’
Now Playing: JPMorgan Chase CEO regrets saying he could beat Trump
Now Playing: JPMorgan Chase CEO says he’s not running for president but ‘never say never’
Now Playing: What does Manafort’s cooperation with the special counsel mean for President Trump?
Now Playing: 1-on-1 with US Coast Guard Commandant Adm. Karl Schultz
Now Playing: Latest on Florence’s impact on North Carolina
Now Playing: Dem strategist critical of anonymous op-ed: If Trump unfit, ‘be public’ about it
Now Playing: Jonathan Karl: Democrats’ demand for Obama reflects ‘identity crisis’ in the party
Now Playing: George Papadopoulos: ‘I never believed’ my wife was Russian agent
Now Playing: Papadopoulos: Campaign ‘fully aware’ of my attempts to set up Trump-Putin meeting
Now Playing: In Memoriam for August 2018
Now Playing: Matthew Dowd on Trump: ‘For a reality TV star, he seems awful divorced from reality’
Now Playing: Cokie Roberts: At McCain ceremony, ‘we were aware of the person who wasn’t there’
Now Playing: Through speakers at funeral, late Sen. John McCain’s voice ‘defiant as ever’
Now Playing: Leon Panetta: Mueller’s report ‘will ultimately determine whether’ to impeach
Now Playing: ‘Pink wave’ of candidates has camouflage tint with increase in female vets
Now Playing: GOP Senator on Kavanaugh nomination: ’30 years ago, he would have passed unanimously’
Now Playing: Gov. Christie to Trump on Mueller investigation: ‘Just stop talking. Just stop.’
Now Playing: Flags fly at half staff at US Capitol, tributes pour in for Sen. John McCain
Now Playing: Martha Raddatz: McCain ‘grateful every single day’ to be able to help veterans
Read More