China-U.S. tensions build over Iran and AI before Trump meets Xi

Tensions between China and the U.S. are rising ahead of a planned meeting between Presidents Donald Trump and Xi Jinping, with disagreements over Iran's nuclear program and competition in artificial intelligence intensifying diplomatic strains. The leaders are expected to meet on the sidelines of the Asia-Pacific Economic Cooperation summit in Busan, South Korea. Both nations face mounting friction on trade, technology, and security issues. The encounter comes amid efforts to stabilize relations despite deepening geopolitical rivalry.