Dunn, who resigned from the board in 2011, did cooperate. He said he was contacted by phone twice – most recently in the last days of June – by Jennifer Windom, a partner at the D.C. firm Robbins Russell, which represented I. Lewis "Scooter" Libby, who was chief of staff to Vice President Dick Cheney's and was prosecuted in connection with the Valerie Plame affair.