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Analysts test the electronic voting system at the headquarters of the Supreme Electoral Court in Brasilia, Brazil, Friday, May 13, 2022. This year, the testing of the voting system is being watched closely as President Jair Bolsonaro casts doubts on the system’s integrity and calls for greater involvement of the armed forces in ensuring reliable results for October's general elections. (AP Photo/Eraldo Peres)

Analysts test the electronic voting system at the headquarters of the Supreme Electoral Court in Brasilia, Brazil, Friday, May 13, 2022. This year, the testing of the voting system is being watched closely as President Jair Bolsonaro casts doubts on the system’s integrity and calls for greater involvement of the armed forces in ensuring reliable results for October's general elections. (AP Photo/Eraldo Peres)

Electronic voting machines sit on display at the headquarters of the Supreme Electoral Court as analysts test the electronic voting system in Brasilia, Brazil, Friday, May 13, 2022. The testing of the voting system is being watched closely this year as President Jair Bolsonaro casts doubts on the system’s integrity and calls for greater involvement of the armed forces in ensuring reliable results for October's general elections. (AP Photo/Eraldo Peres)

Electronic voting machines sit on display at the headquarters of the Supreme Electoral Court as analysts test the electronic voting system in Brasilia, Brazil, Friday, May 13, 2022. The testing of the voting system is being watched closely this year as President Jair Bolsonaro casts doubts on the system’s integrity and calls for greater involvement of the armed forces in ensuring reliable results for October's general elections. (AP Photo/Eraldo Peres)

Brazil's President Jair Bolsonaro attends a meeting with parliamentarians at the Planalto Presidential Palace, in Brasilia, Brazil, Wednesday, April 27, 2022. (AP Photo/Eraldo Peres)

Brazil's President Jair Bolsonaro attends a meeting with parliamentarians at the Planalto Presidential Palace, in Brasilia, Brazil, Wednesday, April 27, 2022. (AP Photo/Eraldo Peres)

Former Brazilian President Luiz Inacio Lula da Silva speaks during his announcement of his candidacy for the country’s upcoming presidential election, in Sao Paulo, Brazil, Saturday, May 7, 2022. Brazil's general elections are scheduled for Oct. 2, 2022. (AP Photo/Andre Penner)

Former Brazilian President Luiz Inacio Lula da Silva speaks during his announcement of his candidacy for the country’s upcoming presidential election, in Sao Paulo, Brazil, Saturday, May 7, 2022. Brazil's general elections are scheduled for Oct. 2, 2022. (AP Photo/Andre Penner)

Carlos Alberto da Silva, professor at the Federal University of the state of Mato Grosso do Sul, works to test the electronic voting system at the Supreme Electoral Court headquarters in Brasilia, Brazil, Friday, May 13, 2022. The testing of the voting system is being watched closely this year as President Jair Bolsonaro casts doubts on the system’s integrity and calls for greater involvement of the armed forces in ensuring reliable results for October's general elections. (AP Photo/Eraldo Peres)

Carlos Alberto da Silva, professor at the Federal University of the state of Mato Grosso do Sul, works to test the electronic voting system at the Supreme Electoral Court headquarters in Brasilia, Brazil, Friday, May 13, 2022. The testing of the voting system is being watched closely this year as President Jair Bolsonaro casts doubts on the system’s integrity and calls for greater involvement of the armed forces in ensuring reliable results for October's general elections. (AP Photo/Eraldo Peres)

A voting machine sits in a presentation room at the headquarters of the Supreme Electoral Court as analysts test the electronic voting system in Brasilia, Brazil, Friday, May 13, 2022. The testing of the voting system is being watched closely this year as President Jair Bolsonaro casts doubts on the system’s integrity and calls for greater involvement of the armed forces in ensuring reliable results for October's general elections. (AP Photo/Eraldo Peres)

A voting machine sits in a presentation room at the headquarters of the Supreme Electoral Court as analysts test the electronic voting system in Brasilia, Brazil, Friday, May 13, 2022. The testing of the voting system is being watched closely this year as President Jair Bolsonaro casts doubts on the system’s integrity and calls for greater involvement of the armed forces in ensuring reliable results for October's general elections. (AP Photo/Eraldo Peres)