The Legislative Power Participation in Mexican Foreign Policy in a Democratic Opening Scenario

For most of the twentieth century, the environment in which the Mexican foreign policy (PEM) was developed was characterized by the existence of rigid structures –internationally the Cold War and at internal level the one-party system-. In this context, a "tradition" in the way of conducting the international relations of Mexico was forged, not only in regard to the principles that guide it, but also in its formulation, review and analysis. However, since the late eighties, that context began to change it is therefore relevant to ask what were the consequences of the increasing electoral competition in Mexico for the PEM? This article aims to answer that question by analyzing how the new political scenario has allowed the participation of new actors in the PEM. Emphasis is placed on the participation of the legislative branch through initiatives of law and points of agreement.