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Trump Launches Trade Investigations Amid Tariff Ruling

3/12/2026

Summary

Story summary

U.S. President Donald Trump has initiated Section 301 trade investigations targeting China, the European Union, and Mexico.
The move follows a Supreme Court ruling that struck down previous tariffs imposed by Trump as illegal.
U.S. Trade Representative Jamieson Greer said the investigations will focus on structural excess capacity in manufacturing and could lead to new tariffs.
The administration aims to conclude these investigations before temporary tariffs expire in July.

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Story summary

U.S. President Donald Trump has initiated Section 301 trade investigations targeting China, the European Union, and Mexico.
The move follows a Supreme Court ruling that struck down previous tariffs imposed by Trump as illegal.
U.S. Trade Representative Jamieson Greer said the investigations will focus on structural excess capacity in manufacturing and could lead to new tariffs.
The administration aims to conclude these investigations before temporary tariffs expire in July.