Half a million roll-call votes for democracy

Handdukar för båda huvudkandidaterna i valet senare i år till försäljning i Rio de Janeiro.
Towels for both main candidates in the election later this year for sale in Rio de Janeiro.

A petition to "defend democracy" in Brazil has passed half a million signatures.

Among the signatories are some prominent names, including the well-known singer Chico Buarque and a former judge of the Supreme Court.

The collection started at the Faculty of Law at the University of São Paulo and takes place …