U.S. and Canadian officials engaged in urgent discussions on August 21 to secure a trade deal and avert new tariffs. By August 22, Canadian PM Mark Carney suspended the talks, characterizing the proposed U.S. terms as unfair. Canada subsequently vowed to implement dollar-for-dollar retaliatory tariffs in response to President Trump's proposed 50% hike. These events signal a breakdown in negotiations and a move toward reciprocal trade barriers.