In what was seen as a vote of support for President Fernando Collor de Mello, conservatives led or won most races in nationwide congressional and gubernatorial elections, exit polls indicated.

But polls also indicated that about 12 percent of Brazil's 83 million voters cast blank ballots Wednesday to protest Collor's harsh economic policies and to express a general sentiment that politicians are not serving the people.Final results will not be known for more than a week. However, exit surveys indicated conservatives had captured at least eight of 27 gubernatorial races and a majority of Senate and House seats.