Brazilian President Dilma Rousseff would win re-election in the first round if the election scheduled for October were held today, according to a voter survey released Thursday by the Ibope institute, thus maintaining her broad lead over all challengers.

The survey, which was made public by the São Paulo daily O Estado and Globo television, found that Rousseff would receive 43 percent of the votes, the same rating she held last November in the latest poll undertaken by the firm.

That percentage would guarantee the president more votes than all the other candidates put together, given that almost one-quarter of those surveyed said they would cast blank ballots, thus ensuring her re-election without the need for a runoff.

Opposition politician Aecio Neves, of the Brazilian Social Democracy Party, or PSDB, moved up by 1 percent to 15 percent in the latest poll, while Eduardo Campos, of the Brazilian Socialist Party remained at 7 percent.

Ibope also asked those surveyed about the scenario in which other minority party candidates were included and Rousseff still would win re-election in the first round.

In that scenario, the president would garner 40 percent of the votes, followed by Neves with 13 percent, Campos with 6 percent and Sen. Randolfe Rodrigues with 1 percent, while 24 percent of those surveyed said they would cast blank ballots and 12 percent did not answer the question.

In a hypothetical runoff, the survey also found that Rousseff - a member of the Workers Party, or PT, would win by wide margins against her two main adversaries.

Nobody has formerly declared his or her presidential candidacy as yet, but all the prospective aspirants have been acclaimed by their respective political parties.

The survey was conducted among 2,002 people throughout Brazil between March 13-17. It has an error margin of 2 percentage points. EFE