Trump announces $15B Mesabi Metallics steel mill in Iowa, largest in US history

President Trump announced a $15 billion investment by Mesabi Metallics to build the largest steel mill in U.S. history in Iowa, advancing his domestic steel agenda. The project signals a major boost to U.S. steel capacity and import substitution, though details on financing, timeline, and feasibility remain unconfirmed. This aligns with ongoing U.S. trade protectionism and could pressure global steel markets.