 Complete the following phrase:  A split erupted between the Chinese Communist Party and the KMT, which threatened the Northern Expedition. Wang Jing Wei, who led the KMT leftist allies, took the city of Wuhan in January 1927. With the support of the Soviet agent Mikhail Borodin, Wang declared the National Government as having moved to Wuhan. Having taken Nanking in March, Chiang halted his campaign and prepared a violent break with Wang and his communist allies. Chiangs expulsion of the CPC and their Soviet advisers, marked by the 