The Department of Justice has sued Ferguson, Missouri, to force an overhaul of the beleaguered city’s criminal justice system. U.S. Attorney General Loretta Lynch filed a civil rights lawsuit Wednesday following a decision by Ferguson’s City Council on Tuesday to challenge several measures in a draft reform agreement that the city had negotiated with federal officials. Speaking at a press conference in Washington, D.C., on Wednesday, Loretta Lynch said, “We intend to aggressively prosecute this case, and we intend to prevail.” The lawsuit says Ferguson is guilty of a “pattern or practice” of law enforcement actions violating the First, Fourth and 14th Amendments of the U.S. Constitution and federal civil rights laws.