Brazil’s Lula launching presidential bid to unseat Bolsonaro

Former Brazilian president Luiz Inacio Lula da Silva will launch his sixth bid for presidency on Saturday.
He has been leading opinion polls ahead of the October election.
But the incumbent, Jair Bolsonaro, who is seeking another term, claims the electronic voting system is vulnerable to fraud.
Al Jazeera's @Monica Yanakiew reports from Sao Paulo, Brazil.