A claim by Donald Trump that FBI agents were authorized by the Department of Justice to shoot him when they appeared at Mar-a-Lago to retrieve stolen government documents left a former DOJ official stunned at the extent the former president will go to incite his followers. During an appearance on MSNBC with host Alex Witt, former Deputy Assistant Attorney General Harry Litman called Trump’s claim a “whopper” that deserved normally placid Attorney General Merrick Garland’s harsh criticism in a press conference this past week. Responding to Trump’s conflation of a standard use-of-force policy th…