Flavio Bolsonaro, along with his wife and two daughters, crossed into northern Argentina by land

Brazil's electoral court declared Lula the winner with 51.8% of the vote, according to AP. Flávio Bolsonaro rejected the outcome and sought annulment over a late voting extension, although no substantiated basis for overturning the result had been established. He was then ordered to surrender his passports and left Brazil for the United States, landing in Miami on 28 October.

Flávio Bolsonaro left Brazil after missing the deadline to surrender his passports. Reports of his departure on 27 October were unconfirmed and Argentine officials first denied the reports, but Argentina's migration agency later confirmed that he crossed by land that night with his wife and two daughters. They flew by private jet via Ecuador and landed at Opa-locka airport near Miami on 28 October. The US State Department said it would issue visas to the family, and Lula called the departure shameful.