California Gov. Gavin Newsom’s trip to China, with the stated goal of working together to fight climate change, resulted in a surprise meeting with leader Xi Jinping and was filled with warm words and friendliness not seen in years in the China-U.S. relationship. The trip was seen as one of the steps in paving the way for U.S. President Joe Biden and Xi to meet in San Francisco in November during the Asia-Pacific Economic Cooperation summit, but it also highlighted the existing relationship that China has with California, showing that even when tensions are high between the two countries, co...