Mexico is set to get its first female president, with preliminary results showing Claudia Sheinbaum, a climate scientist and Mexico City’s former mayor, is on track to win the country’s largest election in history.

Sheinbaum has won between 58.3% and 60.7% of the vote, according to what is known as Quick Count, an exercise that the National Electoral Institute (INE) carries out based on a statistical sample of ballots from polling stations.

The 61-year-old rode the wave of popularity of her longtime political ally, the outgoing leftist Mexican President Andrés Manuel López Obrador, and their Morena party.