Now Playing: Chicago mayor delivers budget speech amid teacher strike
Now Playing: Elizabeth Warren joins Chicago teachers strike
Now Playing: Chicago teachers hit the picket lines on day 5 of the strike
Now Playing: Trump slams ‘do nothing Democrats’ at energy conference
Now Playing: Red light runner nearly hits family pushing stroller in crosswalk
Now Playing: What Would You Do: Daughter reveals her surprising DNA test results
Now Playing: Republicans storm secure hearing room
Now Playing: What Would You Do: Parents admit secret to their adult daughter
Now Playing: Meghan Markle takes the stage at summit in London
Now Playing: 2 sisters reunite after 75 years apart
Now Playing: 2 dead after car plunges from parking garage
Now Playing: FDA calls for new warning for breast implants
Now Playing: Deputy shot and killed in California
Now Playing: 4 American Airlines flight attendants arrested for money laundering
Now Playing: President Trump declares victory in Syria
Now Playing: Dry, windy conditions forcing fire fears in California
Now Playing: Birmingham mourns after missing toddler found dead
Now Playing: Penn State suspends fraternity following off-campus death
Now Playing: New search planned for missing 5-year-old
Now Playing: California residents brace for ‘public safety power shutoff’
