In Politico 50’s profile of Rand Paul, we learn that one of the advisers in his outer circle is our very own Randy Barnett:

Randy Barnett. During his Senate filibuster over drones, Paul quoted from the Georgetown University law professor’s book Restoring the Lost Constitution, which argues that the courts shouldn’t presume a law is constitutional just because it passed. When the two later met, Barnett says Paul did most of the talking. “He had a great understanding of not only the passage he quoted, but also the core thesis of the book,” says Barnett.

I noted that Paul cited Barnett, as well as David Bernstein, during his drone filibuster.