live up to the ethics rules for his own profession:
https://www.dcbar.org/bar-resources/legal-ethics/amended-rules/index.cfm
Rules of Professional Conduct: Rule 8.4--Misconduct
It is professional misconduct for a lawyer to:
(a) Violate or attempt to violate the Rules of Professional Conduct, knowingly assist or induce another to do so, or do so through the acts of another;
(b) Commit a criminal act that reflects adversely on the lawyer’s honesty, trustworthiness, or fitness as a lawyer in other respects;
(c) Engage in conduct involving dishonesty, fraud, deceit, or misrepresentation;
(d) Engage in conduct that seriously interferes with the administration of justice;
(e) State or imply an ability to influence improperly a government agency or official;
(f) Knowingly assist a judge or judicial officer in conduct that is a violation of applicable rules of judicial conduct or other law; or
(g) Seek or threaten to seek criminal charges or disciplinary charges solely to obtain an advantage in a civil matter.
http://www.uscourts.gov/judges-judgeships/code-conduct-united-states-judges