Now Playing: News headlines today: Sep. 4, 2018

Now Playing: Passenger from fatal Colorado River boat crash says she’s ‘lucky to be alive’

Now Playing: Lewinsky shuts down interview after Clinton question

Now Playing: Steve Bannon uninvited from New Yorker event after celebrity backlash

Now Playing: McCain replacement could be key Supreme Court vote

Now Playing: Tropical storm takes aim at Florida, Gulf Coast

Now Playing: Colin Kaepernick named face of Nike’s new 30th anniversary campaign

Now Playing: Survivor on deadly Colorado River boat crash: ‘I thought I was going to drown’

Now Playing: Monica Lewinsky walks out on live discussion after ‘off-limits’ question

Now Playing: Mother meets the son she gave up for adoption 45 years ago: Part 2

Now Playing: Man who needs bone marrow transplant searches for birth mother: Part 1

Now Playing: California police ask for help tracking down hit-and-run driver

Now Playing: Kayaking tragedy in Wisconsin

Now Playing: New details emerge about wife who poisoned her husband with eye drops

Now Playing: Stunning $100,000 scholarship given to Florida high school student

Now Playing: Update on a car chase involving a baby

Now Playing: Search underway to find 3 people missing after boat collision

Now Playing: Shooting at the Del Mar Fairgrounds in California

Now Playing: Flash flood watches and warnings in effect from Texas to the Great Lakes

Now Playing: Tropical storm Gordon slams Florida