Now Playing: Team USA Dominates Medal Count in Rio

Now Playing: Ryan Lochte Apologizes for 'Over-Exaggerating' Robbery Claim

Now Playing: Wildfires Spread in Washington State

Now Playing: Donald Trump Attempts to Attract Minority Voters

Now Playing: Donald Trump Faces Uphill Climb to Garner Minority Vote

Now Playing: Senator Calls for Investigation of JFK Security Scare

Now Playing: Summer Dangers: Shallow Water at the Beach

Now Playing: US Boxer Claressa Shields Discusses Rio Gold Medal

Now Playing: Tyler Perry Talks Fatherhood, 'Too Close to Home'

Now Playing: 'Living With No Excuses': Noah Galloway Visits 'GMA'

Now Playing: Toddler Rescued From Underneath Capsized Boat

Now Playing: 'GMA' Country Playlist: Old Dominion Sings 'Song for Another Time'

Now Playing: Price Increase for EpiPens Causes Outrage

Now Playing: 'GMA' Country Playlist: Billy Durney Shares Country Eats on 'GMA'

Now Playing: Gwen Stefani, Blake Shelton Headline Star-Studded Hamptons Benefit

Now Playing: Prince Harry Challenges Usain Bolt on the Track

Now Playing: Rio Games End With Carnival-Inspired Closing Ceremony

Now Playing: Steph Curry's Daughter, Riley, Gets Backyard Playhouse of Her Dreams

Now Playing: 'GMA' Hot List: Claressa Shields on Her Historic Olympic Gold Medals

Now Playing: Limiting Your Cellphone Usage May Lead to More Happiness