 In the early 1990s, he joined MBR-200 and campaigned for the release of Chávez when he was jailed for his role in the 1992 Venezuelan coup d'état attempts.In the late 1990s, Maduro was instrumental in founding the Movement of the Fifth Republic, which supported Chávez in his run for president in 1998.Maduro was elected on the MVR ticket to the Venezuelan Chamber of Deputies in 1998, to the National Constituent Assembly in 1999, and finally to the National Assembly in 2000, at all times representing the Capital District.