The Canadian ad is misleading. Reagan's words were taken out of context and wrongly connected in the ad. Reagan had just put up a trade barrier against Japan in the late 1980s when he made the free trade address to the nation. It worked well to revive the US economy in the short term, while bursting the Japanese economic bubble. Trump is redoing what Reagan did in the 1980s.
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.
By the time he reaches the advert's opening line, he has set out his aversion to tariffs, described the "prosperity and economic development that only free trade can bring", and said high tariff legislation made the Great Depression even worse. However, in the original address the two sentences are not connected. In fact they are separated by more than a minute of speech, and the "Over the long run.." line actually comes first.
He says in the original speech:
"Imposing such tariffs or trade barriers and restrictions of any kind are steps that I am loath to take. And in a moment I'll mention the sound economic reasons for this: that over the long run such trade barriers hurt every American worker and consumer."
Comparing the controversial advert quoting Ronald Reagan on tariffs with his original address.
www.bbc.com