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U.S. President Joe Biden has likened Chinese President Xi Jinping to a dictator. China calls the comments “blatant political provocation” The row is likely to complicate efforts to improve already strained Sino-American relations. The U.S.-China summit is aimed at easing tensions between the two superpowers. The summit is expected to last until the end of the month. The meeting will be the first between the presidents of China and the United States since 2008. The two countries have a long-standing friendship.

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