J D Vance's wife was a teaching fellow in Guangzhou, China. Two Q posts mention Guangzhou, China, both having to do with Feinstein. Post #2378 and Post #2380.

During her time at Yale, she also taught American history as a Yale-China Teaching Fellow at Sun Yat-sen University in Guangzhou, China.[16]

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