Chinese leader Xi Jinping is renewing a push for the U.S. to change a decades-old phrase describing its stance on Taiwan independence, a concession that would be a major diplomatic win for Beijing.

China has asked the administration of President Donald Trump to officially declare that it ¡°opposes¡± Taiwan independence, according to a person familiar with the matter, who asked not to be identified discussing private information.

The suggested wording is stronger than the administration of Joe Biden¡¯s previous statement that U.S. officials ¡°do not support¡± the self-ruled island seeking formal independence, and would add to China¡¯s campaign to isolate Taiwan on the world stage. The Wall Street Journal first reported the request.