New York Attorney General Letitia James and 20 other state attorneys general sued the Trump administration on Thursday to halt mass layoffs at the U.S. Education Department, charging it would effectively dismantle an agency without congressional authorization.

The lawsuit alleges the layoffs are so severe the department “can no longer function, and cannot comply with its statutory requirements.”

The suit from 20 states and the District of Columbia comes two days after the federal agency fired more than 1,300 employees.