Seeing a niche in catering to fellow immigrants, he expanded the business with the help of his 13 children. It now employs 5,000 people.
Obama said she was impressed by the family's commitment to the communities they serve. "Their story is so inspiring on so many different levels," she said.
After the Inglewood event, Obama was scheduled to appear on The Ellen DeGeneres Show and to deliver a luncheon speech at the Democratic National Committee.
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