oh I didn't even look at the name

while wiki-ing him though, I found out about a different guy:

https://en.wikipedia.org/wiki/Wang_Jingwei

He was initially a member of the left wing of the Kuomintang, leading a government in Wuhan in opposition to the right-wing government in Nanjing, but later became increasingly anti-communist after his efforts to collaborate with the Chinese Communist Party ended in political failure. His political orientation veered sharply to the right later in his career after he collaborated with the Japanese.

I wonder why that happened, and if the KMT's "left wing" was actually left wing in any sense?