Question

The 2000 elections in MexicoCubaChile were significant because the Institutional Revolutionary Party (known as the IRPPRIRIP) lost the presidency.

Answer 1

The 2000 elections in MEXICO were significant because the Institutional Revolutionary Party (known as PRI) lost the presidency.

The 2000 elections were a turning point in the history of Mexico, because for the first time in the modern era of the nation the Institutional Revolutionary Party was defeated in a presidential election, since since its founding in 1929, all Mexican presidents had been the candidates of this political party, which had governed for more than 70 years.

Answer 2

I think that Mexico, Cuba and Chile are options here, and Mexico is the right one.

The party's abbreviation in Spanish is PRI (Partido Revolucionario Institucional) and the winning party was PAN (Partido Accion Nacional).