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Former rebel Gustavo Petro has been elected Colombia’s first left-wing president, with voters giving him a narrow victory over Sunday’s run-off politician and popular Rodolfo Hernandez.

According to preliminary results released by election officials, Petro received 50.47% of the vote on Sunday evening, while Hernandez received 47.25%.

“Today is a day of celebration for the people. Let them celebrate the first popular victory,” the current senator and former mayor of Bogota Petro tweeted after the results came out. “Many sorrows must be nourished in the joy of this day. The motherland fills the heart.”

Former rebel Gustavo Petro, left, his wife Veronica Alcosar, back center and his colleague Francia Marquez celebrate Sunday, June 19, 2022, in front of supporters after winning the runoff presidential election in Bogot, Colombia.

Former rebel Gustavo Petro, left, his wife Veronica Alcosar, back center and his colleague Francia Marquez celebrate Sunday, June 19, 2022, in front of supporters after winning the runoff presidential election in Bogot, Colombia.
(AP Photo / Fernando Vergara)

The success of the former guerrillas in Colombia and the rest of Latin America following the election of left – wing presidents Chile, Peru and Honduras in 2021 is a sign of growing discontent.

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According to a recent Gallup poll, nearly half of Colombians say their local economy is the worst, while 80% say corruption in government is widespread.

Gustavo Petro, Colombia's presidential candidate for the Historic Covenant, waves at a polling station in Bogot on May 29, 2022.

Colombian presidential candidate Gustavo Petro of the Historic Covenant Alliance waves at a polling station in Bogot on May 29, 2022, during the presidential election.
(Juan Barreto / AFP by Getty Images)

Petro, who was jailed in the 1980s for his involvement in the useless M-19 movement, during his campaign promised a suite of economic reforms, including higher taxes, higher government spending and changes in the country’s pension system.

Although voters chose Petro on his progressive platform, he will have difficulty fulfilling his promises due to the broken Congress in Colombia.

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Millionaire real estate magnate Hernandez, who has run an unconventional campaign on TicTac and other social media platforms, agreed Sunday evening.

Gustavo Petro, the presidential candidate of the Historical Covenant Alliance, was celebrated by his supporters on Sunday, June 19, 2022, after winning the second presidential election in Cali, Colombia.

Gustavo Petro, the presidential candidate of the Historical Covenant Alliance, was celebrated by his supporters on Sunday, June 19, 2022, after winning the second presidential election in Cali, Colombia.
(AP Photo / Andres Quintero)

“If we want our companies to be resilient, I accept the outcome,” Hernandez said in a video. “I sincerely hope this decision benefits everyone.”

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Petro’s colleague Francia Marquez will become Colombia’s first Afro-Colombian woman vice president.

The Associated Press contributed to this report.