Drug test all federal employees immediately.
Polygraph any with clearances to ascertain if they have committed treason, conspired or plan to undermine the administration, or exerted pressure or taken action against American citizens for unauthorized or unconstitutional purposes. Besides all the security questions, add questions to determine if they hold woke attitudes or belong to belligerent groups.
Serious functional attrition will result and quickly.
Revoke the clearances of bad actors first…then fire them. Just firing them leaves them able to seek shelter in the MIC always looking for cleared individuals.