A federal judge in Massachusetts issued an injunction Thursday that blocks the Trump administration from its plan to dismantle the Department of Education, and that those employees recently fired from the department be rehired.

In what could lead to a consequential Supreme Court decision, Myong J. Joun said it’s absurd to claim demolishing an agency improves its efficiency.

Ruling halts president’s executive order to wind down the department, with the administration pledging to appeal.