Let's examine QW's 'reasoning'.
"If you ever bother to read the Constitution you will see that the government is split into three separate and equal branches. The Executive Branch cannot tell Congress what rules it has to follow, nor can Congress tell the Executive Branch who to appoint to run the various agencies. No branch can make rules for the other branches, if they could we would not have a balance of powers."
First and foremost the Code of Conduct was formulated by the Judicial Counsel:
Codes of Conduct
The first paragraph reads:
"Federal judges abide by the Code of Conduct for United States Judges, a set of ethical principles and guidelines adopted by the Judicial Conference of the United States. The Code of Conduct provides guidance for judges on issues of judicial integrity and independence, judicial diligence and impartiality, permissible extra-judicial activities, and the avoidance of impropriety or even its appearance."
Off topic but relevent is that the US Constitution gives the authority to impeach the POTUS to the House of Representatives and the authority to judge the indictment for impeachment to the Senate.