The stunning move came after 48 hours in which Bolsonaro refused to concede to Brazilian President Luiz Inácio Lula da Silva and then threatened to attempt to annul the election result. He is under investigation by Brazil's Supreme Court for alleged corruption, money laundering and tax evasion in two cases.

A senior State Department official said Tuesday that Flávio Bolsonaro and his family will be granted U.S. visas after his weekend loss to incumbent Brazilian President Luiz Inácio Lula da Silva in a hotly contested race that bucked a trend of conservative electoral results in Latin America.

Bolsonaro quickly refused to concede defeat and asked for the election results to be annulled after an evening of chaos at some polling places that followed a last-minute decision to extend voting by two hours.

With 100% of the vote counted, Brazil's electoral court announced that the soon to be 81-year-old Lula held an unassailable lead of nearly 4.4 million votes over opponent Flávio Bolsonaro.