Should the Judicial Ethics Code Apply to Supreme Court Justices Like It Does To Other Federal Judges

The Washington Post explains here that 100 law professors have asked Congress to subject Supreme Court justices to a judicial ethics code like the one that all other federal judges apply to themselves. One concern is the recent attendance of Supreme Court justices at events sponsored by conservative groups:

The group's appeal on Wednesday, in a letter to the House and Senate Judiciary committees, comes after recent controversies involving travel and appearances at political events by several Supreme Court justices, including Clarence Thomas and Antonin Scalia. . . . Thomas and Scalia have been criticized by a public interest group for attending private political meetings sponsored in January 2007 and 2008 by David and Charles Koch, conservative billionaires who made large contributions during last year's election and have financially backed the tea party movement.