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Trump Tariffs and Canada: U.S. tariffs on steel, aluminum in effect; Canada’s retaliatory levies start Thursday; Carney to become PM Friday

Carney met with Hamilton steel workers Wednesday, hours after Trump’s levies on steel and aluminum came into effect. 

Updated
19 min read
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U.S. President Donald Trump speaks during a St. Patrick’s Day event with Irish Taoiseach Michael Martin and his wife Mary O’Shea in the East Room of the White House on March 12, 2025, in Washington, D.C.


Donald Trump has imposed new tariffs on steel and aluminum. New Canadian counter-tariffs will be implemented tomorrow. This file is no longer updating.

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Tonda MacCharles

Tonda MacCharles is Ottawa Bureau Chief and a senior reporter covering federal politics. Follow her on Twitter: @tondamacc.

Robert Benzie

Robert Benzie is the Star’s Queen’s Park bureau chief and a reporter covering Ontario politics. Follow him on social media: @robertbenzie.

Mark Ramzy

Mark Ramzy is a federal politics reporter in the Toronto Star’s Parliament Hill Bureau. Reach him via email: mramzy@thestar.ca

Ana Pereira

Ana Pereira is a business reporter for the Star, based in Toronto. Reach her via email: anpereira@thestar.ca

Rob Ferguson

Rob Ferguson is a Toronto-based reporter covering Ontario politics for the Star. Follow him on Twitter: @robferguson1.

Josh Rubin

Josh Rubin is a Toronto-based business reporter. Follow him on Twitter: @starbeer.

Ryan Tumilty

Ryan Tumilty is an Ottawa-based reporter covering Parliament Hill. Reach him at rtumilty@thestar.ca  and follow him on X: @ryantumilty.

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