The US-Canada trade war escalates! In order to fight back against Canada's "hard fight", Trump once again raised the tariff stick high and fell hard.

Trump has recently announced that he will double the tariffs on Canadian steel and aluminum to 50%, which will take effect tomorrow.

He also threatened to "catch back in full" with reciprocal tariffs on April 2.

However, according to senior U.S. administration officials, the document to increase tariffs on Canada has not yet been signed.

Affected by the news, US stocks continued to fall. As of press time, the Dow Jones Industrial Average fell more than 400 points, the S&P 500 fell 0.6%, and the Nasdaq fell 0.1%.