Leonard Pitts, in this Op Ed, presents himself as a Centrist who has reluctantly concluded that the Democratic Party has to take a hard turn to the left. When your opponents ask to sign up, it is as good omen. Take a look. It is worth reading.
Note, by the way, that the hard left agenda he proposes would have been thought Centrist when I was younger. That is a good measure of just how bad things really are.