So, this should be interesting, especially with eight justices set to decide on the case (Justice Elena Kagan has recused herself from the case):
The Supreme Court on Monday agreed to decide whether Arizona may impose tough anti-immigration measures. Among them, in a law enacted last year, is a requirement that the police there question people they stop about their immigration status.
The Obama administration challenged parts of the law in court, saying that it could not be reconciled with federal immigration laws and policies. The United States Court of Appeals for the Ninth Circuit, in San Francisco, blocked enforcement of parts of the law in April.
The administration challenged four provisions. The most prominent was a requirement that state law enforcement officials determine the immigration status of anyone they stop or arrest if officials have reason to believe that the individual might be an illegal immigrant. The provision also requires that the immigration status of people who are arrested be determined before they are released.