International trade

President Donald Trump walks onstage to speak at a campaign rally, Tuesday, Dec. 10, 2019, in Hershey, Pa. (AP Photo/Patrick Semansky)

House Speaker Nancy Pelosi of Calif., speaks at a news conference on Capitol Hill in Washington, Tuesday, Dec. 10, 2019, on Capitol Hill in Washington. (AP Photo/Susan Walsh)

FILE - In this Dec. 5, 2019, file photo specialist Christopher Riggs, left, works with traders Fred DeMarco, center and Philip Powers on the floor of the New York Stock Exchange. The U.S. stock market opens at 9:30 a.m. EST on Tuesday, Dec. 10. (AP Photo/Richard Drew, File)

Dennis Shea, US Ambassador to the WTO, arrives for the opening of the General Council, at the headquarters of the World Trade Organization, WTO, in Geneva, Switzerland, Monday, Dec. 9, 2019. (Salvatore Di Nolfi/Keystone via AP)

A currency trader watches computer monitors near the screens showing the Korea Composite Stock Price Index (KOSPI), right, and the foreign exchange rate between U.S. dollar and South Korean won at the foreign exchange dealing room in Seoul, South Korea, Tuesday, Dec. 10, 2019. Asian stock markets have fallen as investors look ahead to interest rate decisions by U.S. and European central bankers and possible American tariff hike on Chinese imports. (AP Photo/Lee Jin-man)

Vice President Mike Pence listens as President Donald Trump speaks during a roundtable on school choice in the Cabinet Room of the White House, Monday, Dec. 9, 2019, in Washington. (AP Photo/ Evan Vucci)

In this Dec. 7, 2019, photo provided by the North Korean government, North Korean leader Kim Jong Un, center, cuts the ribbon during a ceremonial opening of the Yangdok Hot Spring Cultural Recreation Center in South Pyongan Province, North Korea. Independent journalists were not given access to cover the event depicted in this image distributed by the North Korean government. The content of this image is as provided and cannot be independently verified. Korean language watermark on image as provided by source reads: "KCNA" which is the abbreviation for Korean Central News Agency. (Korean Central News Agency/Korea News Service via AP)

In this Dec. 4, 2019, photo, U.S. President Donald Trump and NATO Secretary General Jens Stoltenberg wait to take their seats prior to a NATO leaders meeting at The Grove hotel and resort in Watford, Hertfordshire, England. Three years into the Trump presidency, America’s new place in the world is coming into focus, with influence waning from NATO meeting rooms to the Middle East to the capital cities of key allies. And in many ways, that’s just fine with the White House. (AP Photo/Frank Augstein)

FILE - In this Oct. 14, 2019, file photo, a worker loads imported goods on a truck at a distribution company outside the container port in Qingdao in east China's Shandong province. China's trade with the United States sank again in November as negotiators worked on the first stage of a possible deal to end a tariff war. (Chinatopix via AP, File)