Arizona, a state that knows better than any about the negative impact of illegal immigration, now has the toughest law in the nation. President Obama used the bill’s signing to pimp amnesty at the national level, calling the new law “irresponsibility.”

"We in Arizona have been more than patient waiting for Washington to act," Brewer said after signing the law. "But decades of inaction and misguided policy have created a dangerous and unacceptable situation."

Ariz. governor signs immigration enforcement bill