Now Playing: Reports of power lines down as storm surge hits Texas

Now Playing: Eye of hurricane to pass over area home to nearly half of America's oil refineries

Now Playing: Time lapse: Hurricane Harvey moves towards Texas coast

Now Playing: Postman-turned-TikTok star Nathan Evans talks about his viral path to fame

Now Playing: Ashley Audrain, author of ‘The Push,’ talks about her tense page turner

Now Playing: Meet the woman behind Bernie Sanders’ famous mittens

Now Playing: Jason Segel talks about new film, ‘Our Friend’

Now Playing: ‘GMA’ Deals and Steals for comfort and relaxation

Now Playing: ‘Bachelorette’ Clare Crawley breaks silence on split from Dale Moss

Now Playing: Black American fashion designers emerge during inauguration

Now Playing: How to save on home improvements

Now Playing: Mystery person wins $731M jackpot

Now Playing: Safety precautions that could help protect you against new COVID-19 variant

Now Playing: Lori Loughlin’s husband out of solitary confinement, pleads for early release

Now Playing: NFL's final 4 set to face off for Super Bowl spots

Now Playing: Trump names first lawyer for impeachment hearing as McConnell seeks delay in trial

Now Playing: Pace of vaccination rollout getting desperate as regions burn through supplies

Now Playing: New White House Press Secretary discusses vaccine rollout plans

Now Playing: Biden launches national ‘wartime’ strategy to stop COVID-19

Now Playing: 93-year-old painter makes dolls for children affected by the explosion in Beirut