Federal officials circulated a memo asking agency leaders to plan even more job reductions after thousands of federal workers were fired in recent weeks.

The memo expands the Republican president’s effort to downsize the federal workforce, which he has described as bloated and impediment to his agenda. Thousands of probationary employees have already been fired, and now his administration is turning its attention to career officials with civil service protection.

The cuts come amid growing attrition from an aging federal workforce, which the Biden administration worried would hollow out the government without intervention.