It's where he kept all of his secrets, recorded on tape. Author Taylor Branch reveals that Bubba invited him into the residence over 70 times to record Clinton's oral history.
Clinton kept the tapes in a sock drawer. He later used them for his autobiography.
After the sessions, Branch would tape his own recollections on his drive home.
His tape-based book, Wrestling History: The Bill Clinton Tapes, is out next year.
Finding room for the tapes wasn't hard because Clinton "had a lot of socks," Branch said in an appearance at the Clinton School of Public Service at the University of Arkansas.
By Paul Bedard