Three LA-area members of Congress were locked out of the ICE Processing Center near Victorville, blocking attempts to oversee those arrested during ICE raids.

Democratic Rep. LaMonica McIver was indicted Tuesday on federal charges alleging she impeded and interfered with immigration officers outside a New Jersey detention center while Newark’s mayor was being arrested after he tried to join a congressional oversight visit at the facility.

Program, driven by agreements that allow local officers to function as deportation agents during routine policing. But advocates warn such agreements come at a high cost to communities.

The indictment charges McIver with "forcibly impeding and interfering with federal law enforcement officers," New Jersey U.S. Attorney Alina Habba said.

The Adelanto ICE Processing Center in San Bernardino County is prepared to house detainees following the Los Angeles raids. Here's what we know.