Higher levy to start in January marks latest escalation of trade tensions between the two countries Long-planned U.S. Key points and original sources are listed below.

• Higher levy to start in January marks latest escalation of trade tensions between the two countriesS1

• Long-planned U.S. tariffs on various Canadian goods went into effect after the talks broke off, and Canada has vowed to retaliateS2

• "Canada has been ripping off the United States of America for years," the president wrote in a post on his Truth Social account.S3

• Trump's latest threat comes after the North American neighbors failed Friday to reach a deal to avert new 50% tariffs imposed by the Trump administration on select Canadian goods.S4

• The president added that Canada is one of the most 'entitled' countries to deal with in terms of tradeS5

• President Donald Trump’s justification for starting the trade war is not based in realityS6