Trump's announcement came after the Canadian province began running a TV ad that features a speech by Ronald Reagan.

The leader of Canada’s most populous province posted remarks by former U.S. President Ronald Reagan on social media on Friday showing Reagan opposed tariffs, hours after President Donald Trump announced he’s ending “all trade negotiations” with Canada

The 1987 radio speech - Address to the Nation on Free and Fair Trade - begins with Reagan saying Japan's prime minister will visit the White House and "recent disagreements" on trade will be discussed. Reagan had recently placed tariffs on some Japanese goods over a trade agreement dispute.

The 1987 radio address by the late former U.S. President Ronald Reagan at the centre of a new U.S.-Canada row was a defence of free but fair trade in which he explained his decision to put duties on Japanese goods in a trade dispute.