“Elon Musk has already helped propel Donald Trump into the White House. Now he might have his sights on a political shake-up at another iconic address: 10 Downing Street,” the Wall Street Journal reports. “There is growing alarm among Britain’s political establishment that Musk, who has been sharply critical of Prime Minister Keir Starmer, may radically alter the U.K.’s electoral landscape by donating millions of dollars to Reform UK, a populist upstart party.