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RIO DE JANEIRO - Brazil held its breath on Sunday as voters went to the polls to decide between leftist leader Luiz Inacio Lula da Silva or his right-wing challenger Flavio Bolsonaro.
It is the final electoral battle for Lula, who turns 81 on Tuesday and is hoping to pull off a dramatic turnaround after coming in second to the son of former president Jair Bolsonaro in the first round of voting.
Final polls showed the two candidates neck-and-neck.

A man votes during the presidential runoff election at a polling station in Rio de Janeiro
Sunday's runoff will determine whether Brazil remains one of Latin America's few leftist nations or joins a regional swing to the right championed by US President Donald Trump, an ally of the Bolsonaro family, though he has not openly endorsed Flavio.
Lula, who is seeking a fourth non-consecutive term, has pitched himself as a bulwark against US interference and democratic backsliding and promised to expand social protections.
The right "wants to govern with the American flag," he said after casting his ballot in the state of Sao Paulo.
Flavio Bolsonaro, 45, has vowed to crack down on crime and slash government spending, while handing Brazil to "the Lord Jesus Christ."
"The time has come for real change," he declared after voting in Rio de Janeiro. "Brazil can't stand another four years like this."

A supporter of Brazil's President and presidential candidate Luiz Inacio Lula da Silva poses as he votes at a polling station during the presidential runoff election in Brasilia
"Even if people call it handouts, for us, they were an enormous help. Because anyone who has ever gone hungry knows not to take these programs for granted," said Walter dos Santos, 56, who lives in Lula's native northeastern Brazil, a bastion of support for the president.
The day after
After his first-round blow, Lula revamped his social media strategy and even bought his first cellphone.
A fierce social media battle drew in Meta, parent company of WhatsApp, Facebook and Instagram, which Lula's campaign accused of favoring his opponent with "algorithmic manipulation."
Meta denied this but acknowledged that some of Lula's campaign ads had been mistakenly deactivated due to technical errors.
Whoever wins, Brazil faces a bruising election aftermath.
"If the left wins, it faces four years with a hostile Congress and threats of impeachment," said political analyst Thomas Traumann, referring to sweeping right-wing legislative gains.
"If the far right wins, it will be a government of retribution, directed at the Supreme Court," hated by the right after its conviction of Jair Bolsonaro over the attempted coup.
Flavio Bolsonaro has said he will liberate his father and seek the impeachment of Supreme Court Justice Alexandre de Moraes, who led the case against the ex-leader.