 It is a group of prominent business, political and academic leaders from the three countries organized and sponsored by the Council on Foreign Relations (U.S.), the Canadian Council of Chief Executives, and the Mexican Council on Foreign Relations.Mexico is an observer of several regional organizations such as the Union of South American Nations (UNASUR), the Southern Common Market (Mercosur) and the Andean Community of Nations (CAN).Former President of Argentina Néstor Kirchner expressed, during a state visit in Mexico City, that Mexico should become a full member of Mercosur, other Latin American leaders such as Luiz Inácio Lula da Silva and Tabaré Vázquez share this vision and have extended the invitation, the latter emphasized Mexico's key role in integration of Latin America and the Caribbean and stated that