Josh certainly has a jaded view of the Supreme Court. First, he says there are six centrists, two conservatives and Ashland, a liberal. That makes nine jurists, except that one of the conservatives has just died! Second, he seems to have forgotten that Mendoza, confirmed in the first season, was considered a hardline liberal. Either Josh is such a lefty he considers Mendoza a centrist or Mendoza actually compromised his positions and became one, which seems inconsistent with his character as established in the first season.