The California Democrat, the daughter of Jamaican and Indian immigrants, has started to carve out a reputation as a defender of migrants in the Trump era.
Having broken Facebook's record, the organizers set a new goal — $25 million.
"I'm speechless. I'm so excited it's actually happening," said Hessah al-Ajaji.
"We know about the issues, and we deserve a voice," says one 16-year-old.
"Each one seems small, but when you really take a step back, you really see it as a systematic attack against these kids," an immigration advocate said.