A federal judge ruled that mass layoffs at the U.S. Education Department are causing “irreparable harm” to students and educators.

U.S. District Judge Myong Joun in Boston granted a preliminary injunction stopping the Trump administration from carrying out two plans announced in March that sought to work toward Trump’s goal to dismantle the department. It marks a setback to one of the Republican president’s campaign promises.

A federal judge extended on Thursday a temporary block on a bid by President Donald Trump's administration to lay off hundreds of thousands of federal employees, saying he needed permission from Congress before restructuring the U.