Institutional Revolutionary Party Tags: Political Party.The Institutional Revolutionary Party (Spanish: Partido Revolucionario Institucional PRI) is a Mexican political party that held power in the country for 71 years first as the National Revolutionary Party then as the Party of the Mexican Revolution. thumbnail affiliation COPPPAL colour Red 色名 Red country Mexico formation date 1929-03-04, 1938-03-30, 1946-01-18 formation year 1929-01-01T00:00:00+02:00, 1938-01-01T00:00:00+02:00, 1946-01-01T00:00:00+02:00 headquarter Mexico City international affiliation Socialist International national affiliation Ecologist Green Party of Mexico secretary Ivonne Ortega Pacheco Learn more... Loading...