Last Wednesday, the Mexican government formally repealed an import ban on genetically modified corn after the U.S. successfully argued the measure violated its commitments under a North American free trade deal. Here’s how we got here. In 2018, the U.S., Canada, and Mexico, i.e., “the Parties,” signed a new free trade agreement called the USMCA, which replaced the North American Free Trade Agreement (NAFTA). The USMCA went into effect in 2020 and, among other things, created new and updated existing trade provisions on agriculture, including a new section on agricultural biotechnology. As part of the USMCA, the parties agree to make specified information regarding authorizations of agricultural biotechnology publicly avail...