-
Now Playing: Amanpour Discusses Iran Briefing on 'Top Line'
-
Now Playing: Washington Post's Michael Shear On 'Top Line'
-
Now Playing: Mention of Trump, Mueller and riot gear in Pittsburgh police email causes stir
-
Now Playing: Trump says he's willing to walk away from N. Korea talks
-
Now Playing: Trump says Mueller, Rosenstein 'still here' despite reports they'll be fired
-
Now Playing: The 'face' of robocalls testifies that it is as easy as a 'click of a button'
-
Now Playing: Spat over Haley 'confusion' raises questions about Trump foreign policy
-
Now Playing: Figure skater to Congress: I reported sexual abuse and was ignored
-
Now Playing: Trump confident in Pompeo confirmation despite opposition
-
Now Playing: Jeb Bush reflects on his mom before a speech
-
Now Playing: Trump and Abe play a round of golf in Florida
-
Now Playing: 'Powerhouse Politics': House Republicans on who should get the speaker's gavel
-
Now Playing: President Trump: U.S., North Korea already talking 'at extremely high levels'
-
Now Playing: Ending America's 'drug crisis' is top DOJ priority: Sessions
-
Now Playing: EPA internal watchdog finds Pruitt's top aide approved controversial raises
-
Now Playing: Supreme Court takes up battle between states, web retailers over sales tax
-
Now Playing: Missouri attorney general says governor may have committed felony
-
Now Playing: Kentucky Gov. Bevin apologizes to 'those who were hurt' by child sex abuse remarks
-
Now Playing: Trump touts GOP's tax cuts in roundtable with Hispanic business leaders
-
Now Playing: Pence's national security adviser pick steps aside