How Brazil's election campaign turned ugly

Brazilians will vote on Sunday in the second and final round of presidential elections.

Polls suggest former leftist leader Luiz Inacio Lula da Silva is ahead of his far-right rival - the current president Jair Bolsonaro.

As the first-round vote was closer than expected, some think that doesn't tell the whole story.

From disputed polls to "conspirituality", Brazil's presidential run-off has split society.