New documents released on Monday highlight a disagreement between the State Department and the F.B.I. over whether or not some of Hillary Clinton's State Department emails should be considered classified. There was even talk of a possible “quid pro quo” arrangement to settle one particular dispute. In this case, a senior State Department official pushed the FBI to agree that one of Clinton's emails on the 2012 Benghazi attack would be unclassified, despite the FBI's push to leave the email classified.