FILE PHOTO: United States Department of State logo and U.S. flag are seen in this illustration created on April 23, 2025. REUTERS/Dado Ruvic/Illustration/File Photo

By Daniel Wiessner

Dec 4 (Reuters) - Unions representing U.S. State Department employees have asked a federal judge to block the agency from laying off more than 1,300 workers on Friday, the latest legal battle over mass job cuts by President Donald Trump's administration.

The unions in a filing in San Francisco federal court late Wednesday said the looming cuts, which include 1,100 civil service jobs and nearly 250 U.S. Foreign Service positions, are not allowed under a law Congress passed last month to end a 43-day government shutdown.

The law, known as a continuing resolution, prohibits agencies from implementing layoffs through January 30. The Trump administration has told agencies that the law does not apply to job cuts that had been announced before the shutdown began on October 1, including the State Department layoffs that were first announced in July.

The American Federation of Government Employees and American Foreign Service Association said in Wednesday's filing that the administration's interpretation of the law is wrong. They asked U.S. District Judge Susan Illston to issue a ruling by Friday morning blocking the layoffs pending further litigation.

Morale within the Foreign Service, the U.S. diplomatic corps, is tanking. A recent survey conducted by the American Foreign Service Association showed 98% of the 2,000 respondents reported poor morale while 86% said changes in the workplace since Trump took office in January have undermined their ability to implement foreign policy. Only 1% reported improvement.

The State Department did not immediately respond to a request for comment.

The filing was made in a lawsuit the unions brought in October to block several federal agencies including the State Department from laying off more than 4,000 employees during the government shutdown.

Illston sided with the unions, ruling that implementing layoffs was not an essential government service that can continue during a shutdown. In May, Illston in a separate case brought by federal worker unions temporarily blocked the government from laying off thousands of employees, a key piece of Trump's plan to shrink and reorganize U.S. agencies.

The U.S. Supreme Court paused that ruling in July, but the administration scaled back planned layoffs after tens of thousands of employees accepted buyouts or retired early.

(Reporting by Daniel Wiessner in Albany, New York and Humeyra Pamuk in Washington, D.C., Editing by Alexia Garamfalvi and David Gregorio)