And the unnamed author “has been in the room with Barack Obama and wishes to remain anonymous.”

That doesn’t narrow it down much: in addition to the 469 employees of the White House, the president had 616 visitors there in December 2010 alone, according to records released by the administration.

And since we don’t know that this “room” is the Oval Office, we should probably also include everyone who’s attended a party or town hall or fund-raiser or campaign trail event also attended by Mr. Obama, plus his classmates, students and colleagues over the years.