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Former President George W. Bush finished his tenure without having won congressional renewal of his No Child Left Behind policy, which in a seven-year span has increased nationwide tracking of student achievement.

With President Barack Obama now at the helm, Bush’s prized project is up for debate.

It’s unclear what Obama and just-confirmed U.S. Education Secretary Arne Duncan will change in the policy; they’ll need support from Congress. But the new president has been critical of it, echoing teachers’ concerns about the costs of NCLB mandates for student improvement and the disparities in state standardized tests.

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