The Supreme Court on Thursday upheld an Arizona law that requires all businesses to check to make sure their employees are in the country legally — upholding a state’s effort to enhance federal immigration laws.

Though the decision does not address Arizona’s other law, which granted police broader powers to check illegal immigrants’ status, it suggested a majority of the court is willing to give states a little room to experiment on immigration issues.

In the 5-3 ruling the majority said that while federal law says the national government can’t make electronic checks of employees’ work-eligibility mandatory, the law does not bar states from doing so. And since Arizona’s law deals with business licensing — an area states are allowed to control — it does not imponge on the federal government.

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