Adam Liptak explores in the New York Times:

The disclosure that Virginia Thomas, the wife of Justice Clarence Thomas, had sent a barrage of text messages to the Trump White House urging efforts to overturn the 2020 election brought into sharp focus the conflict of interest her political activism has created — and the lack of a clear-cut remedy.

It is one thing, experts in legal ethics said on Friday, for the spouse of a Supreme Court justice to express political views, even ones shot through with wild conspiracy theories. That may not by itself require the justice’s recusal from cases touching on those views.

But the text messages from Ms. Thomas, a longtime conservative activist who goes by Ginni, revealed something quite different and deeply troubling, experts said.