The median voter also supports single payer healthcare and [insert lots of extreme opinions supported by the median voter here]. Centrist designates something a

The median voter also supports single payer healthcare and [insert lots of extreme opinions supported by the median voter here]. Centrist designates something approximating "elite public opinion," not any actual idealized voter who falls in the middle in all his attitudes. And once you accept that centrist is simply the designator for elite public opinion, most corporate media is clearly centrist, because they're basically clearinghouses for elite public opinion.