The potential upside of a comprehensive Transatlantic Trade and Investment Partnership agreement to liberalize trade, investment, and regulatory barriers between the United States and the European Union is substantial. The economic benefits are estimated to be in the range of a $125 billion...

Constitutional scholars, lawyers, and policy analysts have long raised concerns about executive branch overreach on trade policy. The issue exploded into prominence in 2018 when President Trump authorized tariffs on imported steel and aluminum, which his Department of Commerce had identified as...