Senate delays hearings for VA pick Dr. Ronny Jackson Video

Now Playing: Confirmation hearing on hold for Trump’s VA pick

Now Playing: Trump suggests his VA secretary nominee step aside

Now Playing: Senate delays hearings for VA pick Dr. Ronny Jackson

Now Playing: White House defending VA secretary pick as senators review allegations against him

Now Playing: Son of US detainee in North Korea stays hopeful amid anticipation of Trump-Kim talk

Now Playing: US Supreme Court hears challenge to Trump travel ban

Now Playing: In address to Congress France’s Emmanuel Macron defends climate accords, Iran deal

Now Playing: Kourtney Kardashian arrives on Capitol Hill to clean up cosmetics

Now Playing: Arizona special election: AP projects Lesko the winner

Now Playing: French president urges the US to stay in the Iran nuclear deal

Now Playing: Kourtney Kardashian arrives on Capitol Hill to clean up cosmetics

Now Playing: ‘Homeland’ star Mandy Patinkin on ‘Powerhouse Politics’

Now Playing: Trump and Macron’s ‘bromance’ continues with kisses, praise

Now Playing: Trump welcomes Macron

Now Playing: Trump talks North Korea denuclearization, Syria troop withdrawal, Iran nuclear deal

Now Playing: Trump warns Iran against restarting nuke program

Now Playing: Trump calls Cohen pardoning question ‘stupid’

Now Playing: Trump welcomes French president, first lady to the White House

Now Playing: Sting, Shaggy on performing for the queen, why they collaborated on new album

Now Playing: Adieu, Apu? Hank Azaria says he’d ‘step aside’ from ‘Simpsons’ role