The National Revolutionary Party was founded in 1929 to win elections and to resolve conflicts between different political groups after the Mexican Revolution. But it was also created in order to face the opposition of the Catholic hierarchy to the Constitution of 1917 and the measures that the revolutionary governments had established to “defanatize” the Mexican people and to limit the social influence and therefore the political power of the Catholic Church. In the past decades nevertheless, the PRI has evolved from initial anti-clerical and even antireligious positions towards more respectful positions of religious freedom, in line with the logic of a State that considers itself to be plural and respectful of differences. On the other hand, party authorities do not always respect their liberal and revolutionary tradition, the secularism of the state and the principle of separation that guarantees the moral autonomy of individuals against corporations. At times, the search for legitimacy generates political dependence and eventually leads to the imposition of the creeds and dogmas of majorities with respect to minorities of all kinds consequently eliminating the free will of broad sectors of the population that do not share those principles and expect the protection and guarantee of their rights by the secular State.