US President Donald Trump has warned he can “play dirtier” than Canada, after a controversial advertisement was allegedly again aired, slapping the nation with a 10 per cent tariff increase.

“Canada was caught, red handed, putting up a fraudulent advertisement on Ronald Reagan’s Speech on Tariffs,” Mr Trump wrote on Truth Social.

“The Reagan Foundation said that they, ‘created an ad campaign using selective audio and video of President Ronald Reagan. The ad misrepresents the Presidential Radio Address,’ and ‘did not seek nor receive permission to use and edit the remarks. The Ronald Reagan Presidential Foundation and Institute is reviewing its legal options in this matter’.

The ad, aired by the province of Ontario, used the words of former President Ronald Reagan to criticise US tariffs

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