"They shouldn't dare commit a fraud, because if they do they will meet the devil", said Yeidckol Polevnsky, president of Lopez Obrador's Morena party.
With almost three-quarters of the ballots counted, Lopez Obrador had about 53 per cent of the vote - the most for any presidential candidate since 1982, a time when the Institutional Revolutionary Party was in its 71-year domination of Mexican politics and ruling party victories were a given.
They're scheduled to end at 6 p.m.in each of Mexico's three summer time zones, meaning the last to close will come in the northwestern state of Baja California.
Mexicans also voted for members of both houses of Congress and nine governors.
According to the first official projection, Ricardo Anaya of the conservative National Action Party (PAN) won between 22.1 and 22.8 percent, Jose Antonio Meade of the ruling Institutional Revolutionary Party (PRI) between 15.7 and 16.3 percent, and independent candidate Jaime Rodriguez between 5.3 and 5.5 percent.
The PRI, which dominated Mexican politics for almost the entire 20th century and recaptured the presidency in 2012, looks set to suffer heavy losses, not just for the presidency but in other races as well.
A third-time presidential candidate, López Obrador has publicly derided Trump's plans to build a wall along the border between the US and Mexico and has said he will demand respect from the White House.
But the two are ideological opposites-AMLO is a leftist who has pledged to re-think foreign corporations' oil contracts, discuss amnesty for those in the drug trade in pursuit of peace, and better protect Central American migrants as they move north through Mexico toward the USA border.
Obrador was expected to be more assertive with Trump while seeking to reduce Mexico's dependency on USA fuel and other trade. Many undocumented immigrants and asylum seekers from Central America pass through Mexico before trying to enter the United States.
Lopez Obrador has promised a "transformation" of Mexico and pledged to give scholarships or paid apprenticeships to youth, and to increase support payments for the elderly.
Oprah: 'Harry and Meghan's wedding gave me hope' Meghan, Duchess of Sussex , and Prince Harry, Duke of Sussex attend Royal Ascot Day 1 at Ascot Racecourse on June 19. In the meantime, we'll just have to enjoy the dozens of epic style moments she's sure to have award-winning or not.
U.S. President Donald Trump, congratulated Lopez Obrador Sunday on Twitter: "Congratulations to Andres Manuel Lopez Obrador on becoming the next President of Mexico".
Although the left-wing populist has railed against Trump's highly-contested border policies, Trump tweeted his congratulations on Monday, adding that he looks "very much forward to working with him".
"We are conscious of the need to maintain good relations with the United States".
Seeking support from economic nationalists, leftist liberals and social conservatives, Mr Lopez Obrador has been vague on policy details. "We share common goals, strong people to people ties, and a mutually beneficial trading relationship that is the envy of the world - reflected in our joint effort to update the North American Free Trade Agreement for the 21st century", Trudeau said.
He has also at times "displayed a pugnaciousness toward Mexico's northern neighbour and has left no doubt that he is prepared to go toe-to-toe with Mr Trump to defend Mexico's interests".
"The revolution of consciences has triumphed", the victor told tens of thousands of jubilant supporters who had gathered on Mexico City's central Zocalo Square. Thousands poured into the Zócalo, the city's main square, to hear their former mayor speak to his supporters.
"The fundamental problem is that this country has a huge demand for drugs", she said. Anaya soon followed, saying he recognized Lopez Obrador's win.
The National Electoral Institute said 98,854 of them mailed ballots by Saturday, more than twice the amount of Mexicans overseas that voted in the last election. News reports say that more than 100 politicians were killed in the campaign leading up to Sunday's vote.
Mexico's president serves on six-year term without the possibility of re-election.
The new leader told Televisa he will respect the current team of negotiators and let them continue representing Mexico until he takes office on December 1. Mario Ritter adapted it for VOA Learning English with additional material from AP.
The man said that the family of the woman were in shock. "Can you imagine if we had begun the autopsy and killed her". The woman, from Gauteng, was immediately taken to Leratong Hospital in Krugersdorp, where she's receiving care.
Authorities picked up Najib from his home after serving him a remand order, two sources close to the family said. At a book launch event earlier, MACC chief commissioner Shukri Abdull was asked when Najib would be charged.
However, analysts have been sceptical about the earning potential of its investments in virtual reality and other emerging areas. According to a dispatch published today from Reuters , HTC is going to eliminate 1,500 manufacturing jobs in Taiwan .
Though concealed by the sun, the moon is still flecked with a few stray particles of light filtered through Earth's atmosphere. The " blood moon " is the longest total lunar eclipse of this century when the moon will be seen coloured in a reddish hue.
Train services of the Western Railway (WR) have been stopped after the bridge, built in 1971, collapsed, a railway official said. A western railway public relation officer reported that part of a road overbridge collapsed on tracks near Andheri Station.
Meeting likely to provoke criticism for USA leader amid probe into Russian interference in 2016 election. They fear he may cede too much during their first official summit on July 16 in Helsinki, Finland.
Just ask Bryant, who won two Olympic gold medals as James' teammate while spending his entire 20-year career with the Lakers. But the fact that the father-of-three already owns two homes in Los Angeles was thought to be in the Lakers favour.
The Netherlands' leader will be at the White House amid trade tensions involving the United States and a number of allies. He said he wasn't "planning anything now" but if the WTO doesn't treat the USA properly, "we will be doing something".
He said: "This is more of a direct response to Aldi and Lidl, whose offers are heavily weighted towards own-brand". This followed a deal previous year between Casino and grocery e-commerce tech provider Ocado Group Plc (OCDO.L).
Trump Begins Interviewing Supreme Court Candidates
The Senate is closely divided - 51 Republicans to 49 Democrats. "Susan Collins can not simultaneously say she supports Roe v. A new report from a conservative news outlet says President Donald Trump is no longer seriously considering Sen.
Malaysia to sell bling seized in ex-PM's probe
Civil lawsuits filed by the US Department of Justice allege that almost $4.5 billion was misappropriated from 1MDB. Najib has said the money was for election purposes and that it came from "genuine donations".
Gmail messages 'read by third parties'
That means even non-users will find their private communications on Google servers, if they're communicating with a Gmail user. Google does little to police those developers, who train their computers-and, in.
Woman's Legs Amputated Following Bahamas Boat Explosion
A United States dancer placed in an induced coma after a boat explosion in the Bahamas will wake to find both her legs amputated. A GoFundMe campaign to assist with the Schaffer's medical and travel expenses has raised more than $80,000 as of Monday evening.
Switzerland snags a spot in the World Cup round of 16
And Ruiz was then denied the chance to end his worldwide career with a goal as his spot-kick flew in off Sommer's bonce. In the 2014 World Cup , Costa Rica exited unbeaten in open play after their first-ever quarter-final.
Senate leaders trade barbed words over Supreme Court
The 1973 Supreme Court decision that legalized abortion nationwide won't be overturned automatically, nor without a fight. West Virginia Senator Joe Manchin says it would be tough to support someone who would revamp the landmark decision.
EU Warns US Imposing Car Import Taxes Could Backfire
General Motors warned last week, for example, that retaliatory duties from other countries could force it to cut jobs in the U.S. So if you support Moog and their plight, remember this will affect most USA based synth manufacturers - please do what you can.
James could return against England
Colombia are expected to pack 30,000 yellow shirts into the arena, with just 3,000 England supporters likely to be in attendance. The status of Colombia playmaker James Rodriguez looms large over the contest.