The administration of President Donald Trump has launched two expansive trade investigations under Section 301 of the Trade Act of 1974, targeting industrial overcapacity and forced labor practices across dozens of nations following a Supreme Court setback.

Section 301 Investigations

The U.S. is investigating 16 trading partners for industrial overcapacity and 60 economies for forced labor practices to restore tariff pressure.

Diplomatic Fallout in India and China

India is delaying a planned trade deal, while China has condemned the overcapacity probe as political manipulation ahead of high-level talks in Paris.

Swiss Strategic Pivot

Switzerland is analyzing the impact on U.S. relations while simultaneously moving to deepen ties with the European Union through new draft legislation.

The administration of President Donald Trump launched two expansive trade investigations on March 11, 2026, aimed at restoring tariff pressure after a legal setback in the judiciary. These probes are being conducted under Section 301 of the Trade Act of 1974, a tool previously used to address foreign trade barriers. The move follows a February 20, 2026, decision by the U.S. Supreme Court that struck down the administration's earlier attempt to implement global tariffs. U.S. Trade Representative Jamieson Greer stated that the investigations will determine if foreign governments have failed to address forced labor or have allowed industrial overcapacity to harm American workers. The forced labor inquiry is set to cover approximately 60 economies, while the excess capacity probe targets 16 specific trading partners, including China, the European Union, and India. Section 301 was a cornerstone of trade policy during the first Trump administration, notably used to initiate the trade war with China in 2018. The U.S. Supreme Court ruling on February 20, 2026, created a legal vacuum by invalidating broad executive tariffs, forcing the administration to return to case-by-case statutory investigations. Historically, such probes can take up to a year to conclude before any duties are officially levied, though they provide the executive branch with significant negotiating leverage.

International reaction to the new investigations has been swift, with major trading partners expressing concern or outright opposition to the measures. China's Commerce Ministry characterized the probe into excess capacity as a form of political manipulation intended to gain leverage. This diplomatic friction comes just ahead of scheduled trade discussions in Paris and a planned summit between President Donald Trump and Chinese President Xi Jinping. India has also responded by signaling a delay in signing a bilateral trade agreement that was expected to move forward following an interim framework reached in February. Sources indicate that New Delhi will likely hold off on the deal for several months to assess the implications of being included in the U.S. investigations. „The probes will determine if foreign governments have failed to take action on forced labor or have excess capacity impacting U.S. workers” — Jamieson Greer via Reuters

Switzerland finds itself in a complex position as it navigates the new U.S. trade environment while simultaneously seeking closer ties with the European Union. On March 13, 2026, the Swiss Federal Council adopted a draft law designed to deepen its relationship with the EU through a new set of bilateral agreements. At the same time, Swiss officials are analyzing how the U.S. Section 301 probes will affect their own ongoing trade negotiations with Washington. Despite the new pressure from the Trump administration, Switzerland currently intends to stick to its existing mandate for those talks. The European Union has also called for the United States to respect existing international trade agreements in light of the new offensive. 60 (economies) — targeted in the forced labor investigation U.S. Trade Policy Shift 2026: Primary Mechanism (before: Global Executive Tariffs, after: Section 301 Investigations); Labor Probe Scope (before: Not active, after: 60 economies); Capacity Probe Scope (before: Not active, after: 16 trading partners) U.S. Trade Policy Escalation 2026: — ; — ; — ; —