Brazil polls open in a few hours

Brazil's President Luiz Inacio Lula da Silva and his main challenger Flavio Bolsonaro wrapped up their campaigns on Saturday in the powerhouse state of Sao Paulo, where a fifth of the nation's vote is based, seeking to rally supporters and convince the undecided on the eve of Sunday's nail-biter election. Mareeke Reethof, lecturer in Latin American Politics at the University of Liverpool, shares further insights.