This week, the Supreme Court rejected the Trump administration’s plans to impose new rules for mail-in voting for the midterm elections in November.

In a March executive order, President Donald Trump had instructed the U.S. Postal Service to create rules for election officials sending mail-in ballots to voters. If a state didn’t comply with the new rules, the Postal Service wouldn’t deliver the ballots to voters. State officials said it would have been impossible to comply in time, and two federal judges blocked the rule for the November elections. Lawyers for the Trump administration asked the Supreme Court to intervene.

In a brief, unsigned order on Monday, the court’s majority denied the administration’s request, writing that the “Government is unlikely to succeed on the merits of its challenge.” Justice Samuel Alito wrote an eight-page dissent, joined by Justice Clarence Thomas, saying he would have allowed the rules to go into effect. The court has not yet decided whether the rules can move forward after the November election.

Trump criticized the Supreme Court’s order in a Truth Social post on Tuesday, calling it “a big loss for Republicans, and America itself.”

The result of the Supreme Court order is that nothing has changed for states.

“State and local election administrators all across the country will continue to do what they always do, which is run safe, secure and transparent elections,” said Barbara Smith Warner, a senior adviser for the Institute for Responsive Government, a think tank working on election issues. “Everyone can and should be sure that they can vote in this election.”

We’ve been reporting for months on the Trump administration’s efforts to issue new regulations on mail-in voting, gather state voter data and investigate voter eligibility ahead of the November elections. We spoke with experts on mail-in voting to answer practical questions about voting by mail.

Why is Trump trying to restrict mail-in voting?

Mail-in voting has become more common over the decades. Roughly a third of Americans cast their ballots through the mail nowadays, according to the Brookings Institute. Trump himself voted by mail twice this year. But mail-in voting varies dramatically from state to state. While more than 95% of voters cast their ballots by mail in Oregon and Washington state, which have all-mail elections, less than 3% of voters vote by mail in West Virginia and Tennessee.

Trump has attacked mail-in voting for years, calling it “cheating” and “corrupt.” And as Trump has tried to exert more federal control over elections, he’s also sought to impose new restrictions on mail-in voting and voter eligibility. The president has........

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