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U.S. President Donald Trump, President Trump's national security adviser John Bolton, President Trump's trade and manufacturing policy adviser Peter Navarro and others, as well as Chinese President Xi Jinping's leadership team attend a working dinner after the G20 leaders summit in Buenos Aires, Argentina, on Dec. 1, 2018. Kevin Lamarque/Reuters

BUENOS AIRES, Argentina—The United States and China reached a 90-day ceasefire in a trade dispute that has rattled financial markets and threatened world economic growth. The breakthrough came after a dinner meeting Dec. 1 between President Donald Trump and Chinese leader Xi Jinping at the Group of 20 summit in Buenos Aires.

Trump agreed to hold off on plans to raise tariffs Jan. 1 on $200 billion in Chinese goods.