The Chicago clerk’s office has kept identifying application materials for more than 2,700 people who used the online CityKey system since December, documents ICE is seeking.

The people of Los Angeles and surrounding areas have taken a courageous stand against Trump’s reign of terror targeting immigrant families,” according to organizers in a social media post about the planned protest.

Ald. Andre Vasquez wants to investigate whether police violated the Welcoming City ordinance during an ICE operation last week. Chicago police officials said officers were on the scene to preserve public safety and did not violate the ordinance.

She was one of an estimated 20 people were rounded up during surprise check-ins at the ICE Intensive Supervision Appearance Program offices in Chicago.