加拿大白左歪曲里根讲话背刺川普，川普雷霆反击终止所有与加贸易谈判

Core Points - President Trump announced the termination of all trade negotiations with Canada, citing a misleading advertisement against U.S. tariffs as the reason for this decision [1][3] - The advertisement, which cost $75 million, used footage of former President Ronald Reagan to argue against tariffs, claiming they would harm the U.S. economy in the long run [1][3] - The Ontario government, led by Premier Doug Ford, is behind the advertisement, which is part of a $53.5 million campaign to inform Americans about the negative impacts of tariffs [3][6] Trade Relations - The U.S. and Canada have a significant trade relationship, with $27 billion in trade occurring daily, and 75% of Canadian exports going to the U.S. [6] - Trump's tariffs on Canadian steel, aluminum, and automobiles have prompted Canada to respond with similar measures, indicating a tit-for-tat trade dynamic [8] - The ongoing review of the USMCA agreement may lead to further U.S. revisions that favor domestic industries, potentially escalating trade tensions [8] Legal Context - The U.S. Supreme Court is set to review the legality of Trump's tariffs, with potential implications for over $1 trillion in refunds if deemed unconstitutional [5] - The previous ruling by the Federal Circuit Court upheld that the Trump administration overstepped its authority under the International Emergency Economic Powers Act [5]