The US government is the largest employer in the country, with over 2.5 million employees. While Executive Order 13672 is still in force prohibiting employment discrimination in the federal service on the basis of gender identity, the Office of Personnel Management guidance on trans employees was just removed from the OPM website. This suggests a potential move to repeal Executive Order 13672.
See this link: https://thinkprogress.org/opm-website-erases-transgender-guidance-ce3a65d09630/