No criminality can be charged against Mrs. Clinton in connection with any of this absent proof that she had what the law regards as a guilty state of mind—a standard that may differ from one statute to another, depending on what criminal act is charged.

Yet—from her direction that classification rules be disregarded, to the presence on her personal email server of information at the highest level of classification, to her repeated falsehoods of a sort that juries are told every day may be treated as evidence of guilty knowledge—it is nearly impossible to draw any conclusion other than that she knew enough to support a conviction at the least for mishandling classified information.

This is the same charge brought against Gen. David Petraeus for disclosing classified information in his personal notebooks to his biographer and mistress, who was herself an Army Reserve military intelligence officer cleared to see top secret information.

The simple proposition that everyone is equal before the law suggests that Mrs. Clinton’s state of mind—whether mere knowledge of what she was doing as to mishandling classified information; or gross negligence in the case of the mishandling of information relating to national defense; or bad intent as to actual or attempted destruction of email messages; or corrupt intent as to State Department business—justifies a criminal charge of one sort or another.