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.
1979 Mexican legislative election
Legislative elections were held in Mexico on 1 July 1979. The Institutional Revolutionary Party won 296 of the 400 seats in the Chamber of Deputies. Voter turnout was 49%.