In August 2009, Mockus and two other past mayors of Bogotá (Enrique Peñalosa and Luis Eduardo Garzón) joined a new political movement, Colombian Green Party and decided that one of them would run for office in the 2010 Colombian presidential elections. Mockus, Peñalosa and Garzón embarked on an innovative campaign, in which they acknowledged and honored each other's qualifications and preparedness for the job, and telling people to choose whomever they liked best. Through a popular consultation carried on 14 March 2010, which he won by a large margin, Mockus became the Colombian Green Party presidential candidate.