June 25, 2012, about Scalia's opinion on the Arizona immigration law: Arizona's entire immigration law should be upheld, Scalia wrote, because it is "entitled" to make its own immigration policy. At one point, he cites the fact that before the Civil War, Southern states could exclude free blacks from their borders to support the idea that states should be able to set their own immigration policies. - part of Scalia's dissent in the Supreme Court case on Arizona's immigration law.