Police in California and Colorado have rebutted two viral stories about immigrants that were spread by right-wing social media accounts in a sign of desperation in the final weeks before the November election. Several conservative social-media influencers, including X owner Elon Musk, shared a false story last week alleging that “illegal aliens” tried to “hijack” some California school buses on Aug. 27 and 28, in a part of San Diego just 3 miles from the U.S.-Mexico border. The bogus story...