The Supreme Court denied Trump's emergency request, but Justice Brett Kavanaugh's concurrence signals the USPS rule may survive for 2028.
https://www.foxnews.com/politics/kavanaugh-throws-trump-lifeline-mail-ballot-rules-despite-supreme-court-loss-midterms
https://www.foxnews.com/politics/kavanaugh-throws-trump-lifeline-mail-ballot-rules-despite-supreme-court-loss-midterms