President Trump has escalated trade tensions with Canada by authorizing a 10% tariff increase, citing a “fraudulent” advertisement that misrepresents former President Reagan’s stance on tariffs as the catalyst. The ad, which reportedly cost the Ontario government around $75 million, is seen by Trump as a hostile act aimed at influencing U.S. legal proceedings. This move comes amid a backdrop of already high tariffs on various Canadian goods, straining the U.S.-Canada trade relationship, characterized by both cooperation and competition. The escalation signals a troubling phase in bilateral ties, likely prompting a strong response from Ottawa as the two nations navigate complex economic interdependencies.