Recent escalations in the U.S.-Canada trade dispute, including the U.S. imposition of 50% tariffs on roughly $20 billion of Canadian goods after negotiations collapsed in late August 2026 and Canada's planned dollar-for-dollar retaliatory tariffs effective September 8, have prompted Ontario Premier Doug Ford to threaten electricity export cuts or surcharges affecting up to 1.5 million U.S. customers in Michigan, Minnesota, and New York. These statements echo a brief 2025 surcharge that was quickly rescinded. However, other provincial leaders, such as New Brunswick's Susan Holt, have ruled out supply interruptions, describing them as an extreme step with longstanding cross-border ties, while federal countermeasures emphasize tariffs on goods rather than energy. Grid operators note that any disruption would primarily raise prices rather than threaten reliability, given bidirectional flows and historical precedent for de-escalation. These factors support trader consensus that an outright cutoff or throttle by year-end remains unlikely.