Analysis: How Biden's farewell jab at Xi over Taiwan traveled across the Pacific

Katsuji Nakazawa is a Tokyo-based senior staff and editorial writer at Nikkei. He spent seven years in China as a correspondent and later as China bureau chief. He was the 2014 recipient of the Vaughn-Ueda International Journalist prize.

When U.S. President Joe Biden saw his Chinese counterpart Xi Jinping off at the Filoli estate in California earlier this month, both leaders were all smiles, giving no hint that Biden had warned Xi about interfering in Taiwan's elections.