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.

A federal grand jury indicted Rep. LaMonica McIver (D-NJ) on charges of assaulting a federal law enforcement officer during a protest at an Immigration and Customs Enforcement detention center last month.