The Supreme Court’s conservative supermajority struck down President Biden’s proposal to cancel at least some student debt for tens of millions of borrowers, saying it overstepped the powers of the Education Department.

In a 6-to-3 decision, Chief Justice John G. Roberts Jr. wrote that a mass debt cancellation program of such significance required clear approval by Congress.

Chief Justice Roberts declared that the administration’s logic — that the secretary of education’s power to “waive or modify” loan terms allowed for debt cancellation — was a vast overreach. “In the same sense that the French Revolution ‘modified’ the status of the French nobility,” he wrote, quoting a previous court decision.