In Mexico, the stolen presidential election of 1988 delegitimized the Institutional Revolutionary Party's rule.
It was the first win by the opposition to Mexico's Institutional Revolutionary Party in 71 years.
Gordillo was expelled from Mexico's Institutional Revolutionary Party in 2006 and helped found the New Alliance party.
Mexicans do know his party, the Institutional Revolutionary Party (PRI), which ruled the country from 1929 until 2000.
For the majority of the 20th century Mexico was ruled by one party, the Institutional Revolutionary Party, or PRI.
The Institutional Revolutionary Party lost power in Mexico , after seven decades, to Vicente Fox, a former Coca-Cola manager.
The Institutional Revolutionary Party (PRI), the biggest opposition group, rejected it, only to produce a similar plan itself last year.
The Institutional Revolutionary Party, which ran Mexico for seven decades until 2000, persecuted the church with varying vigour and imposed secularism.
Roberto Madrazo, the probable presidential candidate of the Institutional Revolutionary Party (PRI), won a bitter election to become Tabasco's governor in 1994.
Mr Lopez Obrador rejected the result, accusing Mr Pena Nieto's Institutional Revolutionary Party, or PRI, of buying votes and favourable media coverage.
The president's volte-face may have done more damage to Roberto Madrazo, the probable candidate of the formerly ruling Institutional Revolutionary Party (PRI).
They were also protesting more generally against the return to power of Mr Pena Nieto's Institutional Revolutionary Party (PRI) after a 12-year absence.
The opposition claims that Brazil's new-found oil wealth will foster the elected authoritarianism that grew up in Mexico under the Institutional Revolutionary Party.
Until Vicente Fox defeated the long-ruling Institutional Revolutionary Party in 2000, police chiefs and even army generals were routinely paid off by drug traffickers.
In 1994 he lost the governorship of Tabasco state in an election rigged by the Institutional Revolutionary Party, the ever-ruling party of the time.
The 39-year-old had been criticized in some quarters, including on social networking sites, for his support of Nieto, leader of the Institutional Revolutionary Party (PRI).
David Penchyna, leader of the energy committee in the Mexican Senate and a member of Pena Nieto's Institutional Revolutionary Party, or PRI, has hedged his bets.
Until then, the PRI (Institutional Revolutionary Party) had ruled Mexico with an iron fist for nearly 60 years and it would remain in power for another 12.
Under the long rule of the Institutional Revolutionary Party until 2000, the role of police and prosecutors was not to investigate crime but to control it and profit from it.
But since Vicente Fox won a presidential election in 2000, ending seven decades of rule by the Institutional Revolutionary Party, Mexican governments have attempted to put a long history of corruption behind them.
However, Mr Fox has reacted to the defeat by making overtures to Mexico's main opposition group, the Institutional Revolutionary Party (PRI), to see if progress can be made in areas where a consensus exists.
Vazquez Mota, of the ruling National Action Party, said the video's message can't go unnoticed, while Institutional Revolutionary Party candidate Pena Nieto expressed that now is the time for change, as the video suggests.
At one time all three were key allies of Pena Nieto's Institutional Revolutionary Party, or PRI, which ruled for 71 years with a combination of coercion and corruption before being voted out of office in 2000.
Nearly 5, 000 members of the Institutional Revolutionary Party, also known as the PRI, voted unanimously at their national convention to remove language in the party's platform that for years had opposed injecting private money in the sector.
Student leaders gathering at the home of Ricardo Pascoe, an aide to Mexico city's opposition mayor, were photographed from a house across the road that Mr Pascoe says is used by the ruling Institutional Revolutionary Party to store campaign materials.
He was something of a rebel: He had dared to take on the long-entrenched Institutional Revolutionary Party (known by its Spanish initials, PRI), a mix of big business, labor and political bosses that served its own interests instead of the people's.
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