37 CFR § 11.802
Judicial and legal officials
November 5, 2020
(a) A practitioner shall not make a statement that the practitioner knows to be false or with reckless disregard as to its truth or falsity concerning the qualifications or integrity of a judge, adjudicatory officer or public legal officer, or of a candidate for election or appointment to judicial or legal office.
(b) A practitioner who is a candidate for judicial office shall comply with the applicable provisions of the Code of Judicial Conduct.