Former Joint Chiefs Chairman Mike Mullen Confident in Trump's Approach Listen Download Embed Share Share this on Facebook (Opens in a new window) Share this on Twitter (Opens in a new window) Share this via Email Chairman of the Joint Chiefs of Staff Adm. Mike Mullen speaks during a media availability at the Pentagon Thursday, June 16, 2011 in Washington. ( Alex Brandon / Associated Press ) Produced by Ellen Frankman Produced by PRI and WNYC