Well - at least they admit it. According to the Chicago Tribune, the head of Immigration and Customs Enforcement (ICE), John Morton, said "his agency will not necessarily process illegal immigrants referred to them [sic] by Arizona officials."
Yes. Let me give you a moment to re-read that paragraph. The guy in charge of immigration enforcement for the United States of America is saying he will refuse to enforce immigration laws. Sounds like someone doesn't understand the requirements of his job.
Kudos to Senator Jeff Sessions for calling him out on Fox news earlier today. According to Fox, when reached for comment, DHS responded by acknowledging that what Morton said was true and then added that "[t]he President ordered DOJ to examine the civil rights and other implications of this law. That review will inform the government's actions going forward."
Senator Sessions rightly pointed out that the administration looks like it is "nullifying existing law." And further, that if "[Morton] can't enforce the law, he shouldn't have the job. That is the top immigration enforcement position in America, he is required in my view to seek the help he can to enforce the law, and to reject the help of the law officers in Arizona - and all over America for that matter - makes him in my view not fulfilling the responsibilities of his office."