"the administration uses the G7 to signal successor frameworks — coordinated Section 301 investigations targeting industrial overcapacity are already underway" [Section 301]
The article establishes a precise legal constraint — 150-day cap, no unilateral extension, no Congressional bill cleared committee — that forces the executive to seek alternative legitimating frameworks before the clock runs out. Using a multilateral summit to pre-align partners on coordinated Section 301 investigations converts a domestic legal vulnerability into a diplomatic coordination exercise. This generalizes: when unilateral executive trade authority is legally bounded, administrations tend to multilateralize successor frameworks to distribute both legitimacy and enforcement burden. The pattern is likely to recur as other IEEPA and Section 232 authorities face legal or political constraints.