Trump Warns Canada's Economy Will Collapse After Making Him Enemy

US President Donald Trump has escalated his trade war with Canada, accusing Prime Minister Mark Carney of making him an enemy in order to boost Canadian politics.

In a social media post, Trump warned that when Canada's economy collapses, it will prove to be bad for its politicians.

This follows comments from Carney on Tuesday, where he said the US needed to 'stop doing memes' and get serious about trade negotiations.

Carney accused US negotiators of seeking terms that threatened Canadian industries and sovereignty, and claimed talks could resume if the Trump administration changed its approach.