Leftists within the KMT still allied to the CCP, led by Wang Jingwei, had established a rival Nationalist Government in Wuhan two months earlier, but soon joined Chiang in Nanjing in August 1927.
The text describes a political shift within the Kuomintang (KMT) where Leftist members aligned with the Chinese Communist Party (CCP), led by Wang Jingwei, established a rival government in Wuhan before joining Chiang Kai-shek in Nanjing.