 He attended high school in the General Paz Military Liceum in Córdoba, and studied Biochemistry at the National University of the Littoral.Cavallero was elected to the Rosario City Council in 1985, and as Mayor of Rosario in 1989 for the Popular Socialist Party (an offshoot of the Socialist Party).Former mayor Horacio Usandizaga, a Radical, had publicly vowed to resign if Carlos Menem was elected President of Argentina.