The fight over Canada's controversial digital services tax may escalate this week as the deadline looms for the Biden administration to decide whether to proceed with dispute arbitration amid threats of retaliation from Donald Trump's incoming administration. On Aug. 30, United States Trade Representative (USTR) Katherine Tai filed an official complaint under the Canada–United States–Mexico Agreement (CUSMA) arguing that the three per cent tax Canada implemented over the summer unfairly discriminates against American corporations. https://www.cbc.ca/news/politics/tuesday-dst-deadline-trump-1.7380857