The film is made by the Canadian province of Ontario, and uses quotes from a radio speech Reagan held in 1987.
High tariffs inevitably lead to countermeasures from other countries, and trigger wild trade wars, says the president, who was a well-known free trade friend.
Trump writes that he has received information from Reagan's foundation that the commercial is fake. He appears to refer to a statement where the foundation writes that it is about "selected audio and video" from the speech, and that the film thus gives a misleading impression of the speech as a whole. "We would like you to watch President Reagan's uncut video on our Youtube channel", writes the foundation.
Trump calls the ad "disgusting behavior" from Canada's side, intended to influence court decisions in the US about Trump's tariffs.
According to American media, Ontario's premier Doug Ford has said that the province will spend 75 million dollars, just over 700 million kronor, on spreading Reagan's view on tariffs in the US. Reagan, president 1981-1989, is a great hero among the US conservatives, and thus many Trump voters.
A federal appeals court ruled at the end of the summer that most of the tariffs that the Trump administration has introduced this year are illegal. Trump hopes that the Supreme Court will overturn the ruling.
"Tariffs are very important for national security and the US economy", claims Trump.
