By Marc ChandlerNEW YORK ( BBH FX Strategy) -- The controversy surrounding the demise of prominent Chinese official Bo Xilai has sparked much debate and speculation about Chinese politics. In that debate, there seems to be a misunderstanding about the way a one-party state works. I grew up in Chicago. The Democratic Party has run Chicago for almost as long as the Communist Party has controlled China. The Democratic Party took control of Chicago in 1955. The Communist Revolution was 1949. From 1955-1976 Richard Daley was the mayor of Chicago. After an interregnum period, his son became mayor in 1989 and ruled until last year. Follow TheStreet on Twitter and become a fan on Facebook. The political battles in Chicago take place within the Democratic Party. As in other organizations, there are forces of movement and forces of order. The winner of the Democratic primary becomes the mayor.