The U.S. will halt all trade negotiations with Canada because Ottawa is moving forward with a digital services tax, President Trump said on Friday, promising new tariffs on Canadian goods within a week. Canada, which has long planned to impose a digital services tax, passed legislation to set one up earlier this year. Canadian authorities will begin collecting the tax, which is retroactive to January 2022, on June 30. “We have just been informed that Canada, a very difficult Country...