Brazil election goes to the wire after ill-tempered final TV debate

Veteran leftist Lula da Silva holds slender poll lead over Jair Bolsonaro as national divide grows before Sunday vote

The two political heavyweights vying to become Brazil's next president have locked horns during the final television debate before a momentous election with profound implications for the Amazon rainforest, the global climate emergency and the future of one of the world's largest democracies.

The former leftist president Luiz Inacio Lula da Silva and the far-right incumbent Jair Bolsonaro faced off in Rio at the studios of Brazil's biggest broadcaster, with eve of election polls giving Lula a slender but not unassailable lead.