Hillary couldn’t be proven guilty without proving the president guilty as well. ‘How is this not classified?” So exclaimed Hillary Clinton’s close aide and confidante, Huma Abedin. The FBI had just shown her an old e-mail exchange, over Clinton’s private account, between the then-secretary of state and a second person, whose name Abedin did not recognize. The FBI then did what the FBI is never supposed to do: The agents informed their interviewee (Abedin) of the identity of the second person. It was the president of the United States, Barack Obama, using a pseudonym to conduct communications over a non-secure...