Brazil's ex-president Lula widely popular despite imprisonment
Opinion polls in Brazil suggest many voters are disillusioned and undecided about who their next president will be.
The most popular choice for re-election is serving 12 years in prison for corruption.
Former President Luiz Inacio "Lula" da Silva is protesting his innocence from his prison cell - and campaigning for permission to run in October.
Al Jazeera's Daniel Schweimler reports from Sao Paulo, Brazil.Source: Google News South Brazil | Netizen 24 Brazil