Brazil is set to hold the first vote in its presidential race on 4 October. The election sees incumbent Luiz Inácio Lula da Silva in a close contest with Flávio Bolsonaro, son of former president Jair Bolsonaro.
Accusations and fears have emerged regarding alleged US interference in the election. These concerns follow similar allegations in several Latin American elections where candidates backed by Donald Trump reportedly won, a trend being referred to as 'the orange wave'.