Donald Trump has imposed a 50% tariff on Canadian aluminium while acknowledging this week that the United States badly needs the metal President Donald Trump says the United States doesn't need Canada Key points and original sources are listed below.

• Donald Trump has imposed a 50% tariff on Canadian aluminium while acknowledging this week that the United States badly needs the metalS1

• President Donald Trump says the United States doesn't need CanadaS2

• The president says the U.S. doesn’t need anything from Canada. Exports say otherwise.S3