加拿大停播反关税广告也不好使，特朗普宣布加征10%关税

Core Points - President Trump accused the Canadian provincial government of misleading the public with a "fake" video ad, leading to an announcement of an additional 10% tariff on Canadian goods [1] - The Ontario provincial government aired an advertisement featuring a quote from former President Reagan, warning about the negative impacts of tariffs, which Trump deemed as a distortion of Reagan's original intent [2] - The Canadian economy is heavily reliant on the U.S., with over 75% of its exports going to the U.S., making it vulnerable to tariff impacts [1] - Following the tensions, Ontario's Premier Ford decided to stop airing anti-tariff ads in an effort to resume trade negotiations with the U.S. [2] - The U.S. Supreme Court is set to hear arguments regarding the legality of the tariff measures on November 5, with previous courts ruling that the Trump administration may have overstepped its authority [3] Summary by Sections Trade Relations - Trump announced a 10% tariff on Canadian goods in response to an Ontario ad that he claimed misrepresented facts [1] - The Ontario government has been pressured to cease anti-U.S. advertising to facilitate trade negotiations [2] Economic Impact - Ontario, being the most populous and economically developed province in Canada, is significantly affected by U.S. tariffs [1] - The Canadian government is considering diversifying trade and focusing on domestic investment due to the ongoing trade tensions [2] Legal Proceedings - The U.S. Supreme Court will hear a case regarding the legality of Trump's tariff measures, which have been challenged in lower courts [3]