Electoral officials have delivered ballot boxes to isolated Indigenous communities in Brazil's Amazon region ahead of a presidential election in which incumbent Luiz Inácio Lula da Silva faces a challenge from Flavio Bolsonaro. Protection of the Amazon rainforest is a central issue in the contest, which is described as Brazil's most consequential in years. Ensuring access to voting for Indigenous people, whose lands are often key to conservation, is seen as important to the legitimacy and outcome of the race.