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.
Party of the Democratic Revolution
The 1988 electoral fraud sparked a movement against the authoritarian rule of the PRI and towards a democracy. As an integral part of the movement towards democracy, the Party of the Democratic Revolution was formed as Mexico's only leftwing party. On May 5, 1989, Cárdenas declared the establishment of the PRD. Former PRI members who also helped found the PRD include: Cárdenas, Porfirio Muñoz Ledo, and Ifigenia Martínez y Hernández.