The Mapaches continued to fight against socialists and communists in Mexico from 1920 to 1936, to maintain their control over the state. In general, elite landowners also allied with the nationally dominant party founded by Plutarco Elías Calles following the assassination of president-elect Obregón in 1928; that party was renamed the Institutional Revolutionary Party in 1946. Through that alliance, they could block land reform in this way as well. The Mapaches were first defeated in 1925 when an alliance of socialists and former Carranza loyalists had Carlos A. Vidal selected as governor, although he was assassinated two years later. The last of the Mapache resistance was overcome in the early 1930s by Governor Victorico Grajales, who pursued President Lázaro Cárdenas' social and economic policies including persecution of the Catholic Church. These policies would have some success in redistributing lands and organizing indigenous workers but the state would remain relatively isolated for the rest of the 20thcentury. The territory was reorganized into municipalities in 1916. The current state constitution was written in 1921.