Luciano Pacheco, a 42-year-old owner of a key-cutting shack in the Brazilian capital, used to be a fervent supporter of the left-wing Workers’ Party. His disillusion set in long before the party was ousted after 13 years in power, and he says there is no candidate or group he can now imagine backing.

“They are only interested in the party or their own careers,” he said of the nation’s politicians. “The people have been left on the side.”