Mexico goes into Sunday´s election deeply divided: friends and relatives no longer talk politics for fear of worsening unbridgeable divides, while drug cartels have split the country into a patchwork quilt of warring fiefdoms. The atmosphere is literally heating up, amid a wave of unusual heat, drought, pollution and political violence. It’s unclear whether Mexico’s next president will be able to rein in the underlying violence and polarization. Soledad Echagoyen, a Mexico City doctor who supports President Andrés Manuel López Obrador’s Morena party, says she can no longer talk about politics with her colleagues. “In order to not lose friendships, we decided not to bring up politics starting six years ago, because we were arguing, and the attacks started to get personal,” said Dr. Echagoyen. Being a critic of the current administration does not appear to be easier. “There´s too much hate,” said Mexico City student Luis Ávalos, 21. He said some of his friends accuse him of “betraying the country” for not supporting López Obrador. Opposition presidential candidate Xóchitl Gálvez has focused her ire on López Obrador´s “hugs not bullets” policy of not confronting the drug cartels. She faces former Mexico City Mayor Claudia Sheinbaum, who is running for López Obrador’s Morena party. Sheinbaum, who leads in the race, has promised to continue all of López Obrador´s policies. López Obrador himself likes to depict every issue as a struggle between the forces of the “good people” and shadowy conservative conspiracies, and he has done a lot to stoke the flames of division and anger. “More than an election, this is a referendum to choose the kind of country we want,” López Obrador said recently. And it really is a referendum on him: he – much like Donald Trump in the United States – is the central figure in the campaign. In Mexico, just as across the globe, forces of angry, charismatic populism are fighting it out with an income-polarized liberal democracy. Issues of national identity, the influence of foreigners and economic exclusion have divided the country into warring camps. “In this country, what’s being built isn’t a sense of citizenship, but rather of voter bases,” said Gloria Alcocer, the director of the civic-minded magazine Voz y Voto, roughly “Voice and Vote.” López Obrador is prohibited by law from running for reelection to another six-year term. The battle lines are drawn: the ruling Morena Party already holds the governorships of 23 of the country’s 32 states, and is going for them all. It already has a simple majority in both houses of Congress, and wants a two-thirds majority so it can amend the Constitution at will. It is hard to describe how chilling that is for some Mexicans who spent more than four decades trying to build a formal democracy, with checks and balances, watchdog agencies and strict electoral rules, almost all of which Morena has said it would like to defund or eliminate if it gets the chance. Like the old ruling Institutional Revolutionary Party – which held Mexico’s presidency without interruption for a record 70 years – Morena hasn’t hesitated to use the government’s power to influence elections, hand out money or embark on big building schemes that may never be truly finished.