At present, the full name of the government of Nanjing is "People's Government of Nanjing City" and the city is under the one-party rule of the CPC, with the CPC Nanjing Committee Secretary as the de facto governor of the city and the mayor as the executive head of the government working under the secretary.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What party rules Nanjing?
the CPC