Now Playing: Trumps host 1st state dinner for France's Macrons

Now Playing: President prepares to host his first state dinner

Now Playing: Waffle House hero who rushed shooter honored by lawmakers

Now Playing: You can soon buy a sex robot equipped with artificial intelligence for about $20,000

Now Playing: 10 dead, others injured after van hits pedestrians in Toronto

Now Playing: It's a boy: Kate gives birth to a new prince

Now Playing: Could 'Roseanne' bring people with different political views together?

Now Playing: Waitresses on sexual harassment they say they face at work from customers, managers

Now Playing: Remembering another side of Barbara Bush, a supporter of AIDS patients

Now Playing: A look at what Meghan Markle's life was like before meeting Prince Harry

Now Playing: What two men say happened when they were arrested at Philadelphia Starbucks

Now Playing: The search for answers after Southwest plane's emergency landing

Now Playing: Kerry Washington on the 'Scandal' series finale and the show's legacy

Now Playing: What's one word you would use to describe James Comey?

Now Playing: What to know about 'hero pilot' who safely landed Southwest flight

Now Playing: 13-year-old 'miracle boy' found alive after falling into drainage pipe

Now Playing: Meet a 16-year-old self-taught contortionist and YouTube star

Now Playing: Villanova wins NCAA championship game against Michigan for the national title

Now Playing: Channing Tatum, Jenna Dewan decide to 'lovingly' separate as a couple

Now Playing: Yale struggles with preserving history and confronting its association with slavery