Tensions between the US and Canada have escalated following the release of an advertisement by Ontario featuring former President Ronald Reagan, which criticizes tariffs as detrimental to trade. In response, former President Trump labeled the ad as 'fake' and accused Canada of attempting to influence US judicial decisions, leading him to terminate ongoing trade negotiations. The advertisement, which is part of a $75 million campaign by Ontario Premier Doug Ford, aims to sway public opinion against US tariffs that have significantly impacted Canada's steel industry. The Ronald Reagan Presidential Foundation has stated that the ad misrepresents Reagan's original remarks, claiming it was edited without permission. This incident highlights the fragile state of US-Canada relations, particularly as both countries navigate complex trade dynamics and public sentiment regarding tariffs.