The president-elect’s threat to hit Canada, Mexico and China with new tariffs is already rocking business and diplomatic relationships and could topple the trade pacts he signed in his first term.

Leaders in Mexico and Canada responded to the president-elect’s proposed new tariffs. Observers said the plan might just be the first step in negotiations.

Donald Trump's proposed tariffs could have major consequences for California's economy, which has a lot riding on trade, especially with China and Mexico.

While the reaction in US stocks was muted, global equities were rattled. Markets are wondering if Trump's threats are mainly a negotiating tactic.

Major Korean companies, including Samsung Electronics and LG Electronics, are now exploring the possibility of reshaping their global supply chains in response to U.S. President-elect Donald Trump’s threat to impose a 25 percent tariff on goods imported from Mexico.

The dollar is already surging to two-year highs against currencies of America's main trading rivals, offsetting the very competitiveness Trump's tariff plans aim to protect.

President-elect Donald Trump's proposed tariffs could impact the price tag for a variety of products.

With a Monday evening promise on Truth Social that his incoming administration will slap 25 percent tariffs on all goods from Canada and Mexico — as well as increasing already existing tariffs on China — Trump sent reporters (and investors,

President-elect Donald Trump announced Nov. 25 he would impose sweeping new tariffs on countries he says have allowed illegal immigrants and drugs to enter the United States. If the import tax were implemented,