The director of ICE doesn’t like Arizona’s intrusion into border regulation. From the Republic:

States should not follow Arizona’s lead and enact strict new immigration laws because ridding the country of illegal immigrants is the federal government’s job, the director of the nation’s immigration enforcement agency said Tuesday.

[…]

So far, lawmakers in about 20 states have said they will push similar measures, with bills already filed in five states – South Carolina, Pennsylvania, Minnesota, Rhode Island and Michigan.

“I don’t think that 50 different immigration enforcement laws is the answer to our immigration troubles,” U.S. Immigration and Customs Enforcement Director John Morton said in an interview. “I understand the frustration that many communities feel over the question of illegal immigration, but having a patchwork of state laws, I don’t think is the right way to go.”

Read more here.