特朗普炮轰加拿大数字税，终止所有美加贸易谈判，威胁征新关税，财长警告301调查将至

Group 1 - The U.S. President Trump has halted trade negotiations with Canada due to Canada's announcement of a digital services tax on U.S. tech companies, which he described as a "direct and blatant attack" [1][2] - Trump stated that the U.S. will inform Canada within a week about the tariffs that will apply to trade with the U.S. [1][2] - Following Trump's announcement, the Canadian dollar depreciated, and the U.S. dollar rose sharply against it, reaching a high of 1.3760 [2] Group 2 - Canadian business and political leaders are urging Prime Minister Carney to cancel the digital services tax to revive trade negotiations with the U.S. [3] - The CEO of the Canadian Business Council suggested that Canada should propose a plan to eliminate the digital services tax in exchange for the U.S. lifting tariffs [3] - Ontario's Premier Doug Ford also called for the cancellation of the digital services tax [3] Group 3 - U.S. Treasury Secretary Mnuchin indicated that the U.S. may initiate a "Section 301 investigation" in response to Canada's digital services tax [5][6] - The Section 301 investigation could lead to more enduring tariffs compared to those imposed under the International Emergency Economic Powers Act [6] - The U.S. has previously initiated Section 301 investigations against other countries regarding their digital services taxes [6] Group 4 - The Canadian Finance Minister had previously suggested that the digital services tax could be part of broader trade negotiations with the U.S. [4] - The U.S. Treasury Secretary mentioned that tariffs resulting from a Section 301 investigation could last longer than those imposed under other legal frameworks [6]