28 U.S. Code § 541 - United States attorneys | U.S. Code | US Law | LII / Legal Information Institute
https://www.law.cornell.edu/uscode/text/28/541
Who Can Fire a Court-Appointed U.S. Attorney? An Abrupt Legal Fight, Explained - The New York Times
https://www.nytimes.com/2020/06/20/us/politics/geoff-berman-who-can-fire.html