[5] He began his youth leadership in Christian democracy in the late 1960s, starting his militancy in the ranks of the party of the Revolutionary Left Movement (MIR).
[citation needed] He again ran for re-election as a deputy for the Department of Santa Cruz, but this time he did so representing the party of the Revolutionary Left Movement (MIR).
[5] He also participated in the 1987 municipal elections, running for mayor of Santa Cruz de la Sierra on behalf of the MIR, but was unsuccessful after coming in second place.
[5] During his term as minister, he managed to dismantle the terrorist group Comisión Néstor Paz Zamora (CNPZ) and the Tupac Katari Guerrilla Army (EGTK), which at the time was made up of Felipe Quispe "El Mallku" (1942) and Alvaro Garcia Linera (1962).
[5] In June 1990, private businessman Jorge Lonsdale (1930-1990) was kidnapped by the terrorist group Nestor Paz Zamora Commission (CNP) led by Miguel Northuster (1961-1990), an Italian originally from South Tyrol.
Public opinion in the country described the police operation as a failure and the Ministry of the Interior was accused of having used unnecessary violence in addition to the murder of all the kidnappers.