A report on Evolución (political coalition), Martín Lousteau and Horacio Rodríguez Larreta

Evolución Ciudadana or simply Evolución , was an Argentine political coalition founded by Martin Lousteau in the City of Buenos Aires.

It was founded in 2015 as Organized Citizen Energy, or simply ECO, to compete against Horacio Rodriguez Larreta in the 2015 City of Buenos Aires elections.

On 5 July 2015, Larreta won 45% of the vote, forcing a runoff with the leader of center-left Evolution's, Martín Lousteau, who secured 28% of the vote.

He ran for mayor in 2015 backed by centre-left coalition called ECO (Energía Ciudadana Organizada), and was narrowly defeated by Horacio Rodríguez Larreta.

In 2017 Argentine mid-term elections, Lousteau ran heading the Evolución, which included the Radical Civic Union and the Socialist Party.