"Other trading partners observing these threats will have the same mistrust of the negotiation process," experts argue.

President Donald Trump said on Wednesday the U.S. will probably "live by the letter" on tariffs with Japan and may have another trade deal coming up with India, following his announcement of an accord with Indonesia on Tuesday.

President Trump is threatening Mexico and the European Union, two of the largest U.S. trading partners, with 30% tariffs starting in August if they don't reach a trade deal with the U.S. CBS News MoneyWatch correspondent Kelly O'Grady breaks down what this means for U.

After European leaders stepped up military spending, President Trump aligned himself more closely with them on the war. But his tariff threats have left bruises.

President Donald Trump posted letters to the leaders of Mexico and the European Union, saying they had not done enough to head off the new tariffs.

The 30% tariff on European goods threatened by U.S. President Donald Trump would, if implemented, be a game-changer for Europe, wiping out whole chunks of transatlantic commerce and forcing a rethink of its export-led economic model.

Aircraft, machinery, cars, chemicals and medical devices are the leading big-ticket items on the latest list of U.S. goods the European Commission has proposed to impose tariffs on if talks with Washington do not yield an agreement on trade.

The U.S. will soon notify a group of minor trading partners that they will face tariffs higher than 10%, President Trump said on Tuesday evening. “We’ll be releasing a letter soon talking about many countries that are much smaller,