MEXICO CITY – Four candidates in the race for the next Mexican president in Sunday's election. Here's a look at the bearers of hope:
ANDRES MANUEL LOPEZ OBRADOR
In his third inauguration, Lopez Obrador, a 64-year-old former mayor of Mexico City, is the leader in most polls.  Lopez Obrador lost the 2006 election by just 0.56 percent to the conservative Felipe Calderon, presumed electoral fraud, and saw his followers host a months-long protest camp on one of the capital's busiest streets. In 2012, he lost a less controversial race against current President Enrique Pena Nieto.
Lopez Obrador was born in the southern Gulf Coast state of Tabasco and is considered a champion of poor and rural Mexicans. He often scolds the country's entrenched elite and vows to defeat the "mafia of power" blamed for rampant corruption.
For years, many members of the Mexican economy and politics warned that Lopez Obrador was a populist who would rule the country decades back and described him as "a threat to Mexico" and tried to associate him with the late Venezuelan socialist president Hugo Chavez to compare. But this time around, Lopez Obrador has taken back his positions and rhetoric, and both sides have achieved a late relaxation in the campaign, even though they are not the best friends.
In addition to fighting corruption, Lopez Obrador has proposed to cut his salary, they also grant some criminals amnesty amidst a wave of violence that has been the bloodiest for at least two decades.
AFFILIATION: National Regeneration Movement or Morena. For many years, Lopez Obrador was a member of the Democratic Revolutionary Party (PRD), but in recent years he broke with the group and founded Morena
NICKNAMES: "AMLO" for his initials; "El Peje" after the Pejelagarto fish native to the state of Tabasco; "Andres Manuelovich", a nickname Lopez Obrador joked in response to allegations that his candidacy could have benefited from Russian interference.
Anaya, 39, a conservative lawyer with a doctorate in political science, is the youngest candidate to make the presidential poll in modern Mexican history. His supporters see him as a forward-thinking technology fanatic and astute student of politics, while critics call him a calculating and manipulative politician.
Anaya started politics at only 18 years of age and became a legislator in 2012 and later rose as spokesman for Mexico's lower house. He accepted the legislature's post on the basis of rules that allocate seats proportionally to parties, and has never won a competitive election race.
Anaya also served as deputy secretary for tourism and became president of his political party, where critics say that he used his position to side rivals as the former First Lady Margarita Zavala
Born in the state of Mexico, the country's most populous country , Anaya is the standard bearer for an unlikely right-left alliance known as the "Forward for Mexico" conservative party and two weakened left-wing parties.
Its main proposals include the creation of a universal basic income, the gradual increase of the minimum wage and the development of the economy by promoting competition and investment. He accuses the current President Enrique Pena Nieto of corruption and says that Pena Nieto, if elected, "will be brought to justice".
AFFILIATION: National Action Party or PAN. Lopez Obrador's former party, the PRD, is part of the coalition.
NICKNAMES: "Boy Wonder," for his image of being a juvenile prodigy; Lopez Obrador mocked him during a debate as "Ricky Riquin Canallin", which is roughly called "Richie Rich the Scoundrel".
JOSE ANTONIO MEADE
A 49-year-old lawyer with a Ph.D. in economics from Yale, Meade is a longtime technocrat and five-time cabinet chief serving under two different parties.
Those close to him say the civil service is burned into his DNA, and Meade was Energy Minister (2011), the Treasury (2012), Foreign Relations (2012), Social Development (2015) and the Treasury (2016).
Although Meade was not a member of the governing party of Pena Nieto, he was elected as a party candidate. The theory that an outsider could be happier in the face of widespread dissatisfaction over corruption, rising violence, and a sluggish economy
But he fought to escape the rage of voters with the ruling party that dominated almost the entire 20th century of Mexican politics, and he is seen in third place.
Meade's camp remains optimistic and announces internal polls claiming he is in second place and says he can close the gap with many undecided voters.
Meade supports a continuing military role in the fight against powerful drug cartels, would maintain a controversial education reform and vows to promote schools, hospitals and social programs.
AFFILIATION: Institutional Revolutionary Party or PRI.
NICKNAME: "El Mas Chingon", a phrase that roughly translates as "The Worst" and was used by Meade to describe itself after the second presidential debate. A video set on cumbia music then circulated on social media using the slogan to promote the candidate.
Rodriguez, 57, is Governor of the northern state of Nuevo Leon and the first winner
He broke a 30-year alliance with the PRI to make this gubernatorial run in 2015 and was previously mayor of Garcia, near the city of Monterrey, from 2009 to 2012.
Rodriguez has ranted against traditional political parties and rejected government funding for his presidential campaign. During a debate in April, he suggested politicians steal their hands. Asked by the moderator if he meant that literally, he doubled up and said he would come up with a bill to sanction that punishment.
Surveys say it is at a single digit, single digit range.
NICKNAME: "The Bronco", an allusion to both his rider style and his simple, idiosyncratic personality.
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