The Department of Education began sending notices to employees that it plans to resume shrinking the department after the Supreme Court said on Monday that President Donald Trump could carry out mass layoffs.

The Trump administration on Tuesday announced plans to shift key functions from the Education Department to other corners of the federal government, moving quickly to implement changes just one day after the Supreme Court cleared the way for mass layoffs.

Closing the department would require congressional approval, and it’s unlikely Trump would have sufficient support.