 The federal model of the state, retained in the 1988 Constitution, is declared by the Constitution as not subject to abolition, even by Constitutional Amendment.According to those tenets and to the results of the popular vote, only minor changes were made to the institutional framework of the State in the Constitutional Revision, including the adoption of a Constitutional Amendment that reduced the presidential term of office from five to four years.In 1995, Fernando Henrique Cardoso was inaugurated for a four-year term.