How should the executive branch respond to globalization? The president’s executive order on international regulatory cooperation provides a blueprint. The branch will turn to regulatory cooperation to make progress in freeing trade and will encourage a particular approach to that cooperation—harmonization—that was eschewed during the successful European integrative project. The executive order, which is assessed in this Article, represents a welcome political endorsement of a phenomenon that was previously pursued by agencies acting largely on their own remit. It is also an attempt to galvanize the use of regulatory cooperation by other agencies disinclined to pursue it in the past. In addition to analyzing how the executive order is meant to work, this Article argues that while the executive’s approach is promising, it must be paired with a commitment to political oversight to ensure that regulatory globalization remains legitimate. There are signs that the president is beginning to provide this commitment through the executive order; the Article identifies a roadmap for its continuation and a role for Congress as well.