The county registrar did not respond to a request for comment.
The Trump administration has been engaged in a far-reaching effort to find, arrest and publicize instances of voter fraud, as the president repeatedly claims, with no evidence, that Democrats steal elections by allowing immigrants to vote illegally. In the last two months alone, the Justice Department has charged 113 people across 20 states with violations of voting laws.
Legal experts and voting officials say those figures, while larger than prior years, still reflect a tiny fraction of a percent of the total voting, and therefore are not significant enough to cause alarm about the integrity of elections or the results. The 28 people charged on Monday come in a state where 16 million people voted in the 2024 general election. Officials said that of those 28 people charged, 21 cast illegal votes in past U.S. elections.
One of those charged is Omar Alexander Munoz, a 72-year-old man from Belize who was arrested at his home in Commerce, Calif., on charges of false statements in a naturalization application and fraudulent voter registration. According to a criminal complaint, records show that Mr. Munoz, who is not a U.S. citizen, voted in the 2020, 2022 and 2024 general elections.
Mr. Munoz and his lawyer could not immediately be reached for comment.
Rob Bonta, the attorney general of California, said the arrests amounted to a drop in the bucket of the 23 million people registered to vote in the state.
People committing voter fraud should be prosecuted, he added, citing a case of voter fraud brought by a local district attorney. It involved a woman in Orange County, whom he described as a Republican and who registered her dog to vote and cast ballots in her pet’s name. She pleaded guilty and was required to pay for billboards saying that voter fraud is “wrong and illegal, and you should not engage in it,” Mr. Bonta said.
Shawn Hubler contributed reporting from Los Angeles, and Laurel Rosenhall from Sacramento.