Abstract
After Donald Trump returned to the White House, the U.S. government launched a host of measures of “tariff wars”. In addition to announcing tariffs on goods imported to the United States from Canada, Mexico and China, the government also imposed trade restrictions on specific industries including steel, aluminum and copper, as well as advanced plan for “reciprocal tariffs”. Donald Trump claimed that a “tariff war” would correct trade imbalances, boost government revenue and promote the reshoring of manufacturing to the United States. By leveraging tariffs, the U.S. also attempts to achieve goals in border security, illegal immigration and fentanyl control. Undoubtedly at a central position in Trump’s second term in office, the “tariff war” will exert impacts far beyond economic and trade policies and upon the direction of China-U.S. relations.