Now Playing: Former Trump doctor: President's files were raided

Now Playing: Former Trump physician claims president's medical record were raided

Now Playing: Chrissy Teigen's advice to my younger self (and my kids)

Now Playing: CDC issues ticks, mosquitoes warning ahead of summer

Now Playing: Blake Lively suddenly deletes her Instagram feed

Now Playing: Inside Disney's new Toy Story Land

Now Playing: 'GMA' Deals and Steals on Wheels: Indianapolis

Now Playing: Meet the couple who won a dream Disney wedding

Now Playing: 'GMA' 2018 Summer Concert Series lineup revealed

Now Playing: Amanda Knox opens up about social media and public shaming

Now Playing: Teen defends Chinese prom dress that sparked backlash

Now Playing: Teen credits Apple Watch for saving her life

Now Playing: Fraternity members accused of hazing return to court

Now Playing: Kanye West criticized for slavery comments

Now Playing: Facebook reveals new features amid privacy concerns

Now Playing: Hero Southwest crew meets with Trump

Now Playing: Famed coaches sue USA Gymnastics

Now Playing: 18 tornadoes reported across 3 states

Now Playing: White House responds to Trump's doctor's raid claim