In a world of colourful economic pie charts and slick bar graphs, the image of a three-sided circle is both awkward and uncomfortable. Yet this image may depict the emerging fate of the Canada-US-Mexico Trade Agreement. For Canada, the wild ride through Trumpian trade policy has now entered a decisive phase. …Some rules of the road ahead are beginning to take shape. First there is a recognition and begrudging acceptance that there will be some tariffs where CUSMA had none. …Secondly, despite warm commitments to the trilateral CUSMA relationship, Canada and Mexico are engaged in separate bilateral discussions with the US. …Enter the three-sided circle. Here the current comprehensive trilateral agreement would evolve into three bilateral trade agreements bound by a core centre that holds common rules and undertakings. …In triaging the trade-wounded, no sector deserves a bigger fix than Canada’s softwood lumber industry. Its market access to the US has been battered by 40 years of aggressive protectionism.