The U.S. Supreme Court ruled in an unsigned order to allow President Donald Trump to dismantle the U.S. Department of Education. (Photo by Jane Norman/States Newsroom)

WASHINGTON — The U.S. Supreme Court on Monday allowed the Trump administration, for now, to proceed with mass layoffs and a plan to dramatically downsize the Education Department ordered earlier this year.

The decision from the nation’s highest court marks a major victory for President Donald Trump, who has sought to overhaul the federal role in education.

The order was unsigned, while Justices Sonia Sotomayor, Elena Kagan and Ketanji Brown Jackson dissented, indicating a 6-3 decision.

The dissent, authored by Sotomayor, was scathing.

“The majority is either willfully blind to the implications of its ruling or naive,” she wrote. “But either way the threat to our Constitution’s separation of powers is grave.”

The Supreme Court’s order temporarily suspends lower court orders that: forced the agency to reinstate more than 1,300 employees gutted from a reduction in force, or RIF, effort; blocked the department from carrying out Trump’s executive order to dismantle the department; and barred the agency from transferring some services to other federal agencies.

In a statement Monday, Education Secretary Linda McMahon celebrated the decision, saying “today, the Supreme Court again confirmed the obvious: the President of the United States, as the head of the Executive Branch, has the ultimate authority to make decisions about staffing levels, administrative organization, and day-to-day operations of federal agencies.”

“While today’s ruling is a significant win for students and families, it is a shame that the highest court in the land had to step in to allow President Trump to advance the reforms Americans elected him to deliver using the authorities granted to him by the U.S. Constitution,” she said.

“The U.S. Department of Education will now deliver on its mandate to restore excellence in American education. We will carry out the reduction in force to promote efficiency and accountability and to ensure resources are directed where they matter most — to students, parents, and teachers.”

A coalition of teachers, unions and school districts that sued over Trump’s order to eliminate the department and the mass layoffs said they were “incredibly disappointed by the Supreme Court’s decision to allow the Trump-Vance administration to proceed with its harmful efforts to dismantle the Department of Education while our case moves forward.”

“This unlawful plan will immediately and irreparably harm students, educators and communities across our nation. Children will be among those hurt the most by this decision. We will never stop fighting on behalf of all students and public schools and the protections, services, and resources they need to thrive,” they added.

Challenge from Democratic state AGs, unions

The labor and advocacy coalition and a slew of Democratic attorneys general each sued in March over some of the administration’s most consequential education initiatives.

One of the lawsuits comes from a coalition of Democratic attorneys general in Arizona, California, Colorado, Connecticut, Delaware, the District of Columbia, Hawaii, Illinois, Maine, Maryland, Massachusetts, Michigan, Minnesota, Nevada, New York, New Jersey, Oregon, Rhode Island, Vermont, Washington state and Wisconsin.

The other lawsuit was brought by the American Federation of Teachers, its Massachusetts chapter, AFSCME Council 93, the American Association of University Professors, the Service Employees International Union and two school districts in Massachusetts.

A Massachusetts federal judge consolidated the lawsuits and granted the states’ and groups’ preliminary injunction in May.

The administration appealed that decision, leading to a June decision from the U.S. Court of Appeals for the 1st Circuit keeping in place the district court’s order.

The Trump administration then asked the Supreme Court to intervene.