In the aftermath of the Province-Wide Municipal Merger of 2001-2002, Zampino was elected to the City Council of Montreal and as Mayor of the Borough of Saint-Léonard.
In the aftermath of the Province-Wide Municipal Merger of 2001-2002, Zampino joined Mayor Gérald Tremblay's Montreal Island Citizens Union municipal party. In 2001, Zampino was elected to the City Council of Montreal and as Mayor of the Borough of Saint-Léonard.