s Donald Trump refuses to concede the election, some of his most loyal allies have become obsessed with a bizarre new conspiracy theory about the race, insisting that Trump only lost the election because a deep-state supercomputer named “Hammer” and a computer program named “Scorecard” were used to change the ballot count. The head of the U.S. Cybersecurity and Infrastructure Security Agency has called the claim about supercomputer election fraud “nonsense,” and urged Americans not to promote it. But the mythical supercomputer claim has been embraced by prominent Trump backers, including former Trump adviser Steve Bannon, former NYPD Commissioner Bernie...