Actually one judge (Dubina) was appointed by Republicans (Reagan/Bush41), one (Hull) by a Democrat (Clinton) and one (Marcus) by both a Republican AND a Democrat (Reagan/Clinton). Stanley Marcus was nominated when the GOP had control of the Senate, after having been appointed to the district court by Reagan. So you probably have 2 GOP/1 Dem on this panel.
Sorry for the double post.
Thank you for the correction. The all-Dem panel I was thinking of is the one in the Fourth Circuit. This is the Eleventh.