Mexico City, being the seat of the powers of the Union, belongs not to any particular state but to all of them. Therefore, the president, representing the federation, used to designate the head of government of the national capital (today the head of the government of Mexico City), sometimes called outside Mexico as the "Mayor" of Mexico City. In the 1980s, the dramatic increase in the population of the previous decades, the inherent political inconsistencies of the system, and dissatisfaction with the inadequate response of the federal government after the 1985 earthquake made residents begin to request political and administrative autonomy to manage their local affairs.