The Authentic Party of Mexican Revolution (Spanish: Partido Auténtico de la Revolución Mexicana PARM) is a Mexican political party that existed from 1955 to 2000. PARM was generally considered a satellite party of the governing Institutional Revolutionary Party (PRI).The PARM was founded by a group of veterans of the Mexican Revolution who no longer found arrangement in the PRI headed by Juan Barragán and Jacinto B.