President Obama criticized a controversial new immigration bill in Arizona on Friday, calling it "misguided."

"Our failure to act responsible at the federal level will only open the door to irresponsibility by others. That includes, for example, the recent efforts in Arizona which threaten to undermine basic notions of fairness that we cherish as Americans, as well as the trust between police and their communities that is so crucial to keeping us safe," the president said at a naturalization ceremony for members of the military.

"In fact, I've instructed members of my administration to closely monitor the situation and examine the civil rights and other implications of this legislation. But if we continue to fail to act at the federal level, we will continue to see misguided efforts opening up around the country."

He added, "As a nation, as a people, we can choose a different future - a future that keeps faith with our history, with our heritage, and with the hope that America has always inspired in the hearts of people all over the world."

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