If you, like most Americans with things to do, began watching the Democratic National Convention when heavy hitters like Elizabeth Warren and Michelle Obama were scheduled to speak, you may have missed one of the day’s most powerful moments.

Eleven-year-old Karla Ortiz and her mother Francisca were introduced to delegates in attendance in Philadelphia with a video of a meeting they had with Hillary Clinton on the campaign trail, in which Karla told Clinton about her fear that her parents, undocumented immigrants, would be deported.

The DNC invited Karla and her mother to speak to in front of a raucous first night at the convention: nationally recognized political figures and entertainers had been booed all afternoon by Sanders delegates upset about emails revealing Democratic Party bias against their candidate.

But the pair delivered the best speech of the afternoon, if not the entire day. In a few minutes, Karla and Francisca Ortiz presented a personal testimony on the consequences of mass deportation policies.

Video: Los Angeles Times.