Institutional Revolutionary Party
Cárdenas's successor Manuel Ávila Camacho gave the party its present name in 1946. The party, under its three different names, held every political position until 1946 when the PAN started winning posts for municipal president and federal deputies and senators, starting in 1946, after the party changed its name to its current name, the Institutional Revolutionary Party. By then, the party had acquired a reputation for corruption, and while this was admitted (to a degree) by some of its affiliates, its supporters maintained that the role of the party was crucial in the modernization and stabilization of Mexico.
Mexico
Three parties have historically been the dominant parties in Mexican politics: the National Action Party: a conservative party founded in 1939 and belonging to the Christian Democrat Organization of America; the Institutional Revolutionary Party, a center-left party and member of Socialist International that was founded in 1929 to unite all the factions of the Mexican Revolution and held an almost hegemonic power in Mexican politics since then; the Party of the Democratic Revolution: a left-wing party, founded in 1989 as the successor of the coalition of socialists and liberal parties.