A 90-day pause on punishing tariffs could restart trade between the world’s largest economies. But it is not enough to resolve uncertainty about the economy.

Donald Trump has agreed to substantially roll back tariffs on China as the two nations continue to work toward a permanent trade deal.

The warning from President Trump follows a temporary agreement between the United States and China to step back from their ongoing tariff war. As of Monday, both nations agreed to drastically reduce mutual import tariffs for a period of 90 days,