China on Monday accused the United States of breaching the 90-day trade truce agreed by the world’s two largest economies, after President Donald Trump said it was Beijing that had “totally violated” the agreement.

Mr. Musk is leaving government service with a bruised reputation even as he planted seeds of his cost-cutting effort across the bureaucracy, but said he hoped to continue to be a “friend and adviser”...

China has vowed to fight back over what it called “discriminatory restrictive measures” by the U.S. that it said are endangering an agreement hammered out between the two countries last month.

By Hyunjoo Jin and Hongmei Li SEOUL/HANOI (Reuters) -Shares in South Korean and Vietnamese steelmakers, major Asian exporters of the metal to the United States, dropped on Monday after U.S. President Donald Trump said he would double tariffs on imported steel and aluminium to 50%.

The president’s tariff strategy entered uncharted political and legal territory last week after a federal trade court ruled that Mr. Trump had misused an emergency economic powers law in trying to wa...