On July 13, Donald Trump survived an assassination attempt in Butler, Pennsylvania. It led to an iconic image of the former president, who had just escaped death from a would-be assassin, perched less than 200 yards from the stage, raising his fist in defiance, face bloody, telling his supporters to “fight.” It’s become a viral sensation. It’s also made some media photographers and editors queasy because—get this—it could hurt Biden and give “free PR” to Trump.  You can’t make this up....