From his perspective, levies on nearly all US imports are meant to balance a trade deficit with major partners, including Canada, Mexico, the EU and the UK, while stimulating domestic production in key sectors. Trump has put forward other reasons for tariffs as well, saying he wants to stem the flow of illegal drugs and immigration, and mentioning broader national security concerns. How effective tariffs would be at controlling these issues is unclear, but they have sown uncertainty and chaos through global financial markets. In the copper sector, tariff turmoil has created price volatility and left investors ... (full story)