In a split decision this morning, the 9th Circuit Court of Appeals concluded there was sufficient evidence to believe that provisions of SB 1070 are an unconstitutional infringement on the exclusive power of the federal government to regulate immigration. Judge Richard Paez, writing for the majority, also said such a conclusion is supported by "the threat of 50 states layering their own immigration enforcement rules on top of the Immigration and Naturalization Act."

The Guardian (United Kingdom): Arizona immigration law loses in court