WASHINGTON (AP) - The Supreme Court is questioning Arizona's tough "show me your papers" law aimed at driving illegal immigrants out of the state, amid objections from the Obama administration that states have a limited role to play in immigration policy.

The court's review of the Arizona law includes a provision that requires police, while enforcing other laws, to question a person's immigration status if officers suspect he is in the country illegally. In the final argument of the term Wednesday, the justices will explore whether lower federal courts were right to block that and other key provisions.

The administration challenged the law soon after Gov. Jan Brewer signed it in 2010. Five other states passed similar laws, parts of which also are on hold pending the high court's decision.

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