They are not citizens. Trump wants to prevent California from counting thousands of votes

The U.S. Justice Department has requested the Supreme Court to temporarily halt California from counting mail-in ballots submitted by over 20,000 voters, claiming they may not be U.S. citizens. This request follows a federal appeals court's rejection of a similar plea. The move intensifies a legal battle that could affect thousands of voters in the upcoming Congressional elections. California officials have criticized the Justice Department's list as unreliable, asserting it likely includes many citizens. The Justice Department warned election officials across all states of potential criminal charges for allowing non-citizens to vote. Historically, cases of non-citizen voting have been rare and often due to administrative errors.