News release: “The Department of Justice challenged the state of Arizona’s recently passed immigration law, S.B. 1070, in federal court today. In a brief filed in the District of Arizona, the Department said S.B. 1070 unconstitutionally interferes with the federal government’s authority to set and enforce immigration policy, explaining that “the Constitution and federal law do not permit the development of a patchwork of state and local immigration policies throughout the country.” A patchwork of state and local policies would seriously disrupt federal immigration enforcement. Having enacted its own immigration policy that conflicts with federal immigration law, Arizona “crossed a constitutional line.” The Department’s brief said that S.B. 1070 will place significant burdens on federal agencies, diverting their resources away from high-priority targets, such as aliens implicated in terrorism, drug smuggling, and gang activity, and those with criminal records. The law’s mandates on Arizona law enforcement will also result in the harassment and detention of foreign visitors and legal immigrants, as well as U.S. citizens, who cannot readily prove their lawful status.”

• The United States of America v. The State of Arizona; and Janice K. Brewer, Governor of the State of Arizona, in her official capacity.” – U.S. v Arizona and Jan Brewer — Complaint
• U.S. v Arizona and Jan Brewer – Plaintiff’s motion for preliminary injunction and memorandum of law