“This WTO case is especially significant because it deals with the central international legal issue in the US conduct of its trade war with China -- whether the US can impose trade restrictions on China in response to alleged Chinese WTO violations without first seeking dispute settlement in the WTO,” James Bacchus, a former Democratic congressman and onetime head of the WTO’s appellate body, said in an email. “I believe these US tariffs are inconsistent with WTO obligations, but it will be left to my successors on the WTO appellate body to decide.”
The WTO is already facing an existential threat over a hold the US has placed on new appellate judge nominations. Absent any reforms, the decision-making wing of the organization will have too few judges to rule on cases by the end of the year. This new investigation could further antagonize the US, which sees the WTO as overstepping its authority.