 Zhang responded that Chiang still had power, even though he had technically retired, and that his consent would be needed to finalize any agreement.Zhou responded that the CCP would not accept a bogus peace dictated by Chiang, and asked whether Zhang had come with the necessary credentials to implement the terms desired by the CCP.Negotiations continued until 15 April, when Zhou produced a "final version" of a "draft agreement for internal peace", which was essentially an ultimatum to accept CCP demands.