Due to a redacted name in an email, the world has been left puzzling over the identity of the biggest jerk in United States diplomacy. The U.S. State Department released another dump of former U.S. Secretary of State Hillary Clinton’s emails late Thursday, and in one message former U.S. Ambassador to Germany John Kornblum wrote: "Just for the record, if she [Clinton] does not already know, [redacted] is one of the biggest jerks in the foreign service,"  Agence France-Presse reported Friday.

In an email from March 2011 from Clinton adviser and friend Sidney Blumenthal, Kornblum cautions Clinton about a potential candidate to follow William Burns as U.S. undersecretary for political affairs. However, in the email released by the State Department, the name of the possible candidate is blacked out. 

"Not only can he not get along with people or think clearly on anything, he also went over totally to the dark side during the Bush administration," AFP quotes Kornblum as saying. "He once literally shouted me down at a conference where I suggested the Bush administration was hurting U.S. relations with Europe."

Controversy over Clinton’s use of a private email server during her tenure as secretary of state (2009-13) has plagued the Democratic presidential candidate all year. In response to a Freedom of Information Act lawsuit, a judge ordered the State Department to release a batch of Clinton’s emails at the end of every month from June 2015 to January 2016.  After the past few email dumps, particularly funny or bizarre emails have gone viral. The emails have covered a plethora of subjects, including emojis, favorite TV shows and updates on Kyrgyzstan and gefilte fish.

Because each email has to be reviewed and any classified material has to be redacted, the State Department has struggled to stay on pace in releasing all 55,000 pages of emails.