Las respuestas mexicanas frente a la Ley Arizona y la función de los estados en la gestión inmigratoria estadounidense

The Arizona Congress issued in 2010 one of the toughest acts concerning undocumented im- migration -the Arizona sb 1070. Some experts argue that subnational agencies should not pass immigration related policies in view of the potential negative impact of retaliation by third countries on both the diplomatic and economic relationships between the US and those countries and on their own economy. Conversely, Spiro (1994; 2001) stresses that nowadays states can identify whether a measure has been taken by a subnational agency in particular, and they can thus implement a focused reaction rather than targeting the whole country. he purpose of this work is to establish to what extent the current status of Mexico-US relationship is represented by either one of those perspectives. Also, this particular discussion is placed within the broader issue concerning whether the US states could and/or should play a more active role on immigration management. Bearing these goals in mind, we explore Mexico's reactions to the sb 1070 passage as well as the impact of the Arizona Act on US-Mexican relations.