BOGOTA, Colombia -- Former rebel Gustavo Petro narrowly won a runoff election over a political outsider millionaire Sunday, ushering in a new era of politics for Colombia by becoming the country's first leftist president-elect.
Petro, a senator in his third attempt to win the presidency, got 50.48 % of the votes, while real estate magnate Rodolfo Hernández had 47.26%, with almost all ballots counted, according to results released by election authorities.
Petro's victory underlined a drastic change in presidential politics for a country that has long marginalized the left for its perceived association with the armed conflict.
"Today is a day of celebration for the people. Let them celebrate the first popular victory," Petro tweeted. "May so many sufferings be cushioned in the joy that today floods the heart of the Homeland."
Petro was once a rebel with the now-defunct M-19 movement and was granted amnesty after being jailed for his involvement with the group.
At his headquarters in the capital city of Bogota, a message on a screen read, "Thank you Colombia."
Outgoing conservative President Iván Duque congratulated Petro shortly after results were announced, and Hernández quickly conceded his defeat.
"I accept the result, as it should be, if we want our institutions to be firm," Hernández said in a video on social media. "I sincerely hope that this decision is beneficial for everyone."
The vote came amid widespread discontent over rising inequality, inflation and violence -- factors that led voters in the election's first round last month to turn their backs on the long-governing centrist and right-leaning politicians and choose two outsiders in Latin America's third-most populous nation.
Petro's showing was the latest leftist political victory in Latin America fueled by voters' desire for change. Chile, Peru and Honduras elected leftist presidents in 2021, and in Brazil, former President Luiz Inácio Lula da Silva is leading the polls for this year's presidential election.
About 21.6 million of the 39 million eligible voters cast a ballot Sunday. Abstentionism has been above 40% in every presidential election since 1990.
Petro, 62, will be officially declared winner after a formal count that will take a few days. Historically, the preliminary results have coincided with the final ones.
Polls ahead of the runoff had indicated Petro and Hernández -- both former mayors -- were in a tight race since they topped four other candidates in the initial May 29 election. Neither got enough votes to win outright and headed into the runoff.
Petro has proposed ambitious pension, tax, health and agricultural reforms and changes to how Colombia fights drug cartels and other armed groups.
He won 40% of the votes in the initial round and Hernández 28%, but the difference quickly narrowed as Hernández began to attract so-called anti-Petrista voters.
Petro will have a tough time delivering on his promises as he does not have a majority in Congress, which is key to carrying out reforms. In recent legislative elections, Petro's political movement won 20 seats in the Senate, a plurality, but he would still have to make concessions in negotiations with other parties.
Hernández, who made his money in real estate, is not affiliated with any major political party and rejected alliances. His austere campaign, waged mostly on TikTok and other social media platforms, was self-financed and based mostly on a fight against corruption, which he blames for poverty and the loss of state resources that could be used on social programs.
Hernández surged late in the first-round campaign past more conventional candidates and shocked many when he finished second. He faced controversies, including saying he admired Adolf Hitler before apologizing and saying that he meant to refer to Albert Einstein.
Polls say most Colombians believe the country is heading in the wrong direction and disapprove of Duque, who was not eligible to seek reelection. The pandemic set back the country's anti-poverty efforts by at least a decade. Official figures show that 39% of Colombia's lived on less than $89 a month last year.
The rejection of politics as usual "is a reflection of the fact that the people are fed up with the same people as always," said Nataly Amezquita, a 26-year-old civil engineer waiting to vote. "We have to create greater social change. Many people in the country aren't in the best condition."
But even the two outsider candidates left her cold. She said she would cast a blank ballot: "I don't like either of the two candidates ... Neither of them seems like a good person to me."