What is Hillary Clinton’s Relationship With Sidney Blumenthal?

Hillary’s State Department emails directly contradict her testimony in front of the House Benghazi Committee, leaving citizens to wonder: what exactly was the Secretary of State’s relationship with Sidney Blumenthal?
Regarding the dozens of emails from [Blumenthal], which in many cases were forwarded to her State Department team, Clinton testified: “He’s a friend of mine. He sent me information he thought might be of interest. Some of it was, some of it wasn’t, some of it I forwarded to be followed up on. He had no official position in the government. And he was not at all my adviser on Libya.”
But a newly released email from February 2011 shows Blumenthal advocated for a no-fly zone over Libya, writing, “U.S. might consider advancing tomorrow. Libyan helicopters and planes are raining terror on cities.” The email was forwarded by Clinton to her deputy chief of staff Jake Sullivan with the question, “What do you think of this idea?”
… In another email from March 5, 2012, Clinton appears to use Blumenthal as what is known in intelligence circles as a “cut out,” a type of intermediary to gather information, allowing the policymaker plausible deniability. In this case, the emails focused on the increasingly chaotic and fragmenting political landscape in Libya after dictator Muammar Qaddafi was removed from power.
Policy lobbying? Discussions with parties of interest as a State Department intermediary? He sure sounds like an adviser to me.