Donald Trump says Canadian tariffs have hurt American farmers "for many years". (Reuters: Jessica Koscielniak)
US President Donald Trump says Canada wants the benefits of being a US state without being one, after the collapse of trade talks between the two nations.
He has also slammed Canada for charging American farmers "for many years, massive amounts of tariffs".
New Canadian tariffs targeting the US steel and dairy industries will take effect on September 8, Prime Minister Mark Carney has announced.
US President Donald Trump has hit back at Canada after Prime Minister Mark Carney announced retaliatory tariffs on the United States following a breakdown in trade negotiations.
"Canada wants the benefits of being a State, without being one!!!" Mr Trump said in a post on Truth Social.
Since beginning his second term, Mr Trump has made numerous references to making Canada the "51st state" of America, which has infuriated the northern neighbours.
Earlier, Mr Carney said that new Canadian tariffs would take effect on September 8, notably targeting the US steel and dairy industries.
New 50 per cent US tariffs impacting about $US20 billion ($28 billion) worth of goods, or 5.5 per cent of Canadian exports to the US, came into force on Saturday.
Canadian and US steel products will be impacted by the tit-for-tat tariffs. (AP: Nick Iwanyshyn/The Canadian Press)
The "dollar for dollar" tariffs on imports of US steel, electronics and other products mark a further worsening of relations between the longtime allies and major trading partners.
The two countries failed to reach a trade deal late on Friday, with each side blaming the other for derailing three days of intensive negotiations.
The breakdown complicates the future of a US-Mexico-Canada free-trade pact.
Mr Trump's new tariffs hit sectors including wine, furniture, dairy products, cement, clothing, fishing rods and hockey equipment,
These duties do not exempt Canadian products under the three-nation trade deal, which has shielded most Canadian exports to the US in the past 18 months.
