National Security Adviser Jake Sullivan traveled to China on Tuesday, which isn’t really all that unusual. He had meetings scheduled with Wang Yi, China’s top diplomat, as well as Zhang Youxia, vice chairman of the Chinese Communist Party’s Central Military Commission. Considering that he is purportedly there to discuss trade and technology, those types of meetings are to be expected. But Sullivan added another item to his dance card this morning when he met directly with Chinese President Xi Jinping. The conversation reportedly contained some hopeful tones about future cooperation between our two nations, but Xi also seemed to be cautiously issuing a warning to the United States. Xi expressed his hope that Washington will find “a right way” to get along with Beijing while figuring out how to maintain a “healthy and sustainable” relationship. We might infer from that comment that he…