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.

Petro, a senator in his third attempt to win the presidency, had 50.47% of the votes, while real estate magnate Rodolfo Hernández had 47.27%, with almost all ballots counted, according to results released by election authorities.

Petro 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.

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.”

At his headquarters in the capital city of Bogota, a message on a screen read, “Gracias Colombia,” or “Thank you Colombia.”

[huffpost.com]