Denis McDonough, Chief of Staff to President Barack Obama (2013 – 2017)
Andy Card, President Franklin Pierce University (2014-2016); Chief of Staff to President George W. Bush (2001-2006)
Mack McLarty, Chairman, McLarty Associates; Chief of Staff to President William Clinton (1993 -1994)
Chris Whipple (moderator), Documentary Filmmaker and writer; Author, The Gatekeepers: How the White House Chiefs of Staff Define Every Presidency
More information at http://iop.harvard.edu/forum/gatekeepers-white-house-chiefs-staff