Steelman · slot A
The integrated-continent case
A North American supply-chain economist would argue —What's actually at stake in this July 1 review isn't a document — it's thirty years of co-located factories, cross-border parts flows, and energy infrastructure that lets a Midwest refinery run on Canadian crude and a West Coast home heat with continental gas. The single biggest reason the trade war hasn't tanked the U.S. economy is that USMCA exempts most of what crosses the northern and southern borders; strip that away and the tariff pain people feared finally arrives. Jefferies puts renewal odds at 10% and a decade of annual reviews at 75% — that limbo alone freezes the capital decisions that built this system. Foreign automakers are already telling the administration they'll pull their cheapest models. You don't get to rebuild this on the other side of a breakup.