Former President Donald Trump and his allies are spinning up any reason they can to delegitimize the presidential debate as they fear they’ve set themselves up to lose, writes MSNBC columnist Michael A. Cohen (not to be confused with Trump’s former attorney.) “Over the past several days, Republican after Republican has made evidence-free accusations in what is perhaps the weirdest recent example of a presidential candidate and his supporters seeking to raise expectations for the candidate’s political rival,” wrote Cohen — the chief theory being that Biden is going to be pumped full of drugs to…