Some scholars consider the promulgation of the Mexican Constitution of 1917 as the revolution's end point. "Economic and social conditions improved in accordance with revolutionary policies, so that the new society took shape within a framework of official revolutionary institutions," with the constitution providing that framework. Organized labor gained significant power, as seen in Article 123 of the Constitution of 1917. Land reform in Mexico was enabled by Article 27. Economic nationalism was also enabled by Article 27, restricting ownership of enterprises by foreigners. The Constitution also further restricted the Roman Catholic Church in Mexico; implementing the restrictions in the late 1920s resulted in major violence in the Cristero War. A ban on re-election of the president was enshrined in the Constitution and in practice. Political succession was achieved in 1929 with the creation of the "Partido Nacional Revolucionario" (PNR), the political party that dominated Mexico's politics from its creation to the 1990s, now called the Institutional Revolutionary Party.