The Trump administration on Friday asked the Supreme Court to lift a court order to reinstate U.S. Department of Education employees the administration had terminated as part of its efforts to dismantle the agency.

Officials for the administration are arguing to the high court that U.S. District Judge Myong Joun in Boston didn’t have the authority to require the Education Department to rehire the workers. More than 1,300 employees were affected by the mass layoffs in March.

The staff reduction “effectuates the Administration’s policy of streamlining the Department and eliminating discretionary functions that, in the Administration’s view, are better left to the States,” Solicitor General D. John Sauer wrote in the filing.

A federal appeals court had refused on Wednesday to lift the judge’s ruling.

In his May 22 preliminary injunction, Joun pointed out that the staff cuts led to the closure of seven out of 12 offices tasked with the enforcement of civil rights, including protecting students from discrimination on the basis of race and disability.