A key figure in a multistate effort to overturn the 2020 election, Mr. DePerno lost his race for Michigan attorney general in 2022. He later finished second to lead the state’s Republican Party.
The prosecutor overseeing the investigation into election interference will make her case next month to a grand jury in Atlanta that could hand up indictments.
Brazil’s former president is accused of spreading false information about the nation’s election systems. A conviction would block him from office for eight years.