United States President Donald Trump speaks during a meeting with travel industry executives in the Oval Office of the White House in Washington, DC, September 2, 2026. Brendan Smialowski | AFP | Getty ImagesPresident Donald Trump on Tuesday criticized the Supreme Court for blocking a controversial new US Postal Service rule on mail-in voting for the upcoming midterm elections. “It’s a huge loss for Republicans and for America itself, and it makes the radical left ‘dumocrats’ cheating on mail-in voting a lot easier to do,” Trump said in a Truth Social post. Trump’s fellow Republicans are trying to retain their slim majorities in both houses of Congress in the November elections. Trump also sharply criticized his three Supreme Court appointees for appearing to join three liberal justices, plus Chief Justice John Roberts, on Monday in upholding a federal district court judge in Boston’s order blocking the Postal Service rule from applying to mail-in ballots for the November election. Dollars with shockingly bad rulings,” Trump wrote. One of Trump’s appointees, Judge Brett Kavanaugh, had written on Monday that while there is “a fair prospect” that the Postal Service rule will ultimately prove legal, “applying the rule in the 2026 election would be arbitrary and capricious in violation of the Administrative Procedure Act because state and local election officials do not have enough time to reasonably implement the rule before the election.” The other two Trump appointees are the judges Neil Gorsuch and Amy Coney Barrett In February, when Gorsuch and Barrett joined their conservative colleague Roberts and the three liberal justices in a majority ruling against Trump’s sweeping import tariffs, the president called their votes “a disgrace to their families and to others” Refresh for updates.