Institutional Revolutionary Party
The Institutional Revolutionary Party (, PRI) is a Mexican political party founded in 1929 that held uninterrupted power in the country for 71 years from 1929 to 2000, first as the National Revolutionary Party (, PNR), then as the Party of the Mexican Revolution (, PRM), and finally renaming itself as the Institutional Revolutionary Party in 1946.
Manuel Ávila Camacho
On January 18, 1946, he had the Party of the Mexican Revolution (PRM) renamed to its current name, the Institutional Revolutionary Party (PRI). The Mexican army had been a sector of the PRM; that sector was eliminated from the organization of the PRI.