>> Justices are subject to a federal law that prohibits them from hearing cases in which their spouses have “an interest that could be substantially affected by the outcome of the proceeding.” The statute, 28 U.S.C. section 455, also requires them to disqualify themselves from any proceedings in which their “impartiality might reasonably be questioned.”

> How can you argue this isn't applicable?

It really hinges on how exactly "interest" is defined, and if it's so broad to cover a desire to see/advocacy for certain political outcomes.

Should a liberal judge recuse themselves from all abortion cases because their spouse made a donation to Planned Parenthood or wrote letters to their representatives advocating against some anti-abortion law that may come before the court?