Practice debate opponent shares his secrets

Robert Barnett, a prominent Washington attorney, has worked on eight national presidential campaigns, focusing on debate preparation. He played the role of George H.W. Bush in practice debates with Geraldine Ferraro in 1984 and with Michael Dukakis in 1988, and practice debated Bill Clinton more than 20 times during the 1992 campaign. He also played the role of Dick Cheney in 2000 and 2004 and helped prepare Hillary Clinton for 23 primary debates for the 2008 nomination. Barnett spoke with CNNI's Michael Holmes.