The justices of the Supreme Court are not bound by the Code of Conduct for United States Judges, but in any event, those rules don't say the income sources of a judge's independent adult children should prevent the judge from hearing certain cases. They do say, "A judge should not allow family, social, political, financial, or other relationships to influence judicial conduct or judgment." But it's a stretch to imagine this broad admonition should have led Kennedy to recuse himself from hearing Trump cases, even if the code of conduct applied to the Supreme Court. By Tanden's logic, the appearance of bias could paralyze the government, since officials would have to keep tabs on the finances of their grown children and recuse themselves from matters that could be associated with their children's sources of income.