One reason top White House advisers are trying to stop Trump from withdrawing from the South Korea free trade agreement is because they do not want to isolate the government in Seoul at a time when North Korea has become increasingly adversarial with its missile program, testing nuclear weapons and firing missiles over Japan in a way that has alarmed the international community…

Withdrawing from the deal could lead to a large increase on tariffs levied against products the United States imports from South Korea, such as electronics, cellphones and automobiles. South Korea would probably move quickly to raise its own tariffs against U.S. products, and it could also decide to raise tariffs on its imports of U.S. agriculture products.