As expected, the Department of Justice has filed a suit against Arizona, over the state's controversial immigration law, S.B. 1070, which is slated to take effect later this month.
"Although a state may adopt regulations that have an indirect or incidental effect on aliens, a state may not establish its own immigration policy or enforce state laws in a manner that interferes with federal immigration law," the Obama administration argues in a brief submitted to the United States District Court for the District of Arizona today. "The State of Arizona has crossed this constitutional line."
The government has asked for a preliminary injunction, "to preserve the status quo, because the United States is likely to prevail on the merits of this case, and absent injunctive relief, the United States will continue to suffer irreparable harm."
You can read the brief below. The complaint is after the jump.