U.S. President Donald Trump, Chinese President Xi Jinping, and top officials reached a truce in the trade war over dinner at the G-20 summit in Buenos Aires on Dec. 1. (Saul Loeb/AFP/Getty Images)
As widely expected, U.S. President Donald Trump paused his trade war with China at the G-20 summit in Argentina this weekend, halting the imposition of new tariffs for 90 days while the two countries continue talking about the wider irritants in the trade relationship. But Trump also threw a cloud over the future of the new NAFTA, threatening to pull out of the existing three-way North American trade deal altogether if Congress doesn’t ratify the renegotiated accord.