 However, in those 12 months, he presented many initiatives and managed to pass a reform law, notable for a first-timer congressman.In 1991, he decided to run for mayor of Bogotá with the same tactics he used to gain his seat for Congress, without the support of any politicians and just by doing face-to-face contact while touring the city walking, biking or riding on public transportation.He ran against Jaime Castro Castro who ultimately won the election.