'If you pick a fight with Canada...': Ex-Trudeau ally Jagmeet Singh's warning for Donald Trump

US President-elect Donald Trump's rhetoric about making Canada the 51st state of America after his inauguration of January 20 has drawn sharp criticism from several corners, including from Canada's top leaders.

The latest to join the league is Canada's New Democratic Party (NDP) leader Jagmeet Singh who slammed Trump's plans to merge Canada with the USA.

Taking to X, the former ally of Justin Trudeau said he has a message for Trump. "Our country is not for sale. Not now, not ever."

Singh said Canada is a good neighbour who extended support to the US during the wildfires that destroyed large swathes of Los Angeles last week. At least 24 people were killed as of Monday.

"With forest fires ravaging homes, Canadian firefighters showed up. That is who we are. And we show up and support our neighbours," said Singh.

He also slammed Trump for vowing to levy 25 per cent tariffs on Canada.

Warning of retaliatory tariffs, the NDP leader said, "If you think you can pick a fight with us, there will be a price to pay."

Singh said anyone running as Prime Minister should do the same. After Canadian PM Trudeau resigned, the Liberal Party could see a new leader taking over as PM ahead of the general elections later this year.

This comes after Trump posted on Truth Social platform in December that many Canadians want the country to become the 51st US state. Listing the benefits for Canadians, Trumps said taxes would be slashed by over 60 per cent, businesses would double and the country would be protected "like no other country anywhere in the World."

Trudeau had also slammed Trump over his rhetoric, saying Canada will never become part of the US.