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FILE - Workers check on signed signatures on mail-in ballots at the new Los Angeles County Ballot Processing Center in the City of Industry, Calif., Thursday, Feb. 29, 2024. (AP Photo/Richard Vogel, File)

FILE - Workers check on signed signatures on mail-in ballots at the new Los Angeles County Ballot Processing Center in the City of Industry, Calif., Thursday, Feb. 29, 2024. (AP Photo/Richard Vogel, File)

FILE - A worker prepares to take bags of ballots to be sorted and processed by the Los Angeles County Registrar at the temporary building at the Pomona Fairplex in Pomona, Calif., Thursday, Nov. 5, 2020. (Keith Birmingham/The Orange County Register via AP)

FILE - A worker prepares to take bags of ballots to be sorted and processed by the Los Angeles County Registrar at the temporary building at the Pomona Fairplex in Pomona, Calif., Thursday, Nov. 5, 2020. (Keith Birmingham/The Orange County Register via AP)

FILE - This Nov. 4, 2016, file photo shows mail-in ballots being sorted at the Santa Clara County Registrar of Voters in San Jose, Calif. (AP Photo/Marcio Jose Sanchez, File)

FILE - This Nov. 4, 2016, file photo shows mail-in ballots being sorted at the Santa Clara County Registrar of Voters in San Jose, Calif. (AP Photo/Marcio Jose Sanchez, File)

FILE - A worker processes mail-in ballots for the state's primary elections at the Orange County Supervisor of Elections office in Orlando, Fla., March 17, 2020. (Joe Burbank/Orlando Sentinel via AP, File)

FILE - A worker processes mail-in ballots for the state's primary elections at the Orange County Supervisor of Elections office in Orlando, Fla., March 17, 2020. (Joe Burbank/Orlando Sentinel via AP, File)

FILE - Workers count votes on election night at the Los Angeles County Registrar's Tally Operations Center in Downey, Calif., Tuesday, Nov. 3, 2020. (Keith Birmingham/The Orange County Register via AP, File)

FILE - Workers count votes on election night at the Los Angeles County Registrar's Tally Operations Center in Downey, Calif., Tuesday, Nov. 3, 2020. (Keith Birmingham/The Orange County Register via AP, File)

FILE - An employee at the Broward Supervisor of Elections Office conducts logic and accuracy testing of equipment used for counting ballots, Thursday, Sept. 24, 2020, in Lauderhill, Fla. (AP Photo/Lynne Sladky, File)

FILE - An employee at the Broward Supervisor of Elections Office conducts logic and accuracy testing of equipment used for counting ballots, Thursday, Sept. 24, 2020, in Lauderhill, Fla. (AP Photo/Lynne Sladky, File)