Former President Donald Trump’s running mate, Ohio Sen. J.D. Vance, is completely unable to tell a proper joke and can barely interact with other human beings in an organic way, wrote Slate senior editor Sam Adams — and there’s a reason for this that reveals the fundamental kind of person he is. In his latest column, Adams analyzes why Vance “keeps bombing” when he attempts to make jokes during campaign stops. Vance certainly attempts to engage in humor, wrote Adams, but the way he does is telling. For example, during one rally earlier this summer when Vance stated, “Democrats say that it is r…