President Donald Trump has just fired a rhetorical missile at a former FBI agent, demanding a deep dive into what he calls outright misconduct. Trump’s latest salvo, launched via Truth Social on Wednesday, targets Walter Giardina, accusing him of being part of a broader pattern of politically charged investigations against Trump and his allies, from the 2016 Russia probe to the Jan. 6 inquiries, as Breitbart reports. Let’s rewind to the beginnin…