Gustavo Petro has been in office for four years, and his impact on Colombia is being assessed. He is often referred to as "el presidente del cambio", or the president of change. BBC Mundo is evaluating the changes that have taken place in Colombia during his presidency.

The outlet is providing a balance of what has changed in the country under Petro's leadership. Further details on the transformations that have occurred in Colombia are available from BBC Mundo, which has been examining Petro's time in office and the legacy he is building, despite not being eligible for re-election.