William Cohen held this post in Bill Clinton's cabinet
It is not 
unusual for a president to nominate a cabinet secretary from the opposing party, 
even in ... Democrat Bill Clinton had Republican William Cohen serve as ... Much 
of the post-election discussion over the composition of the cabinet is... [DOC] [TLE] Republican Touted For Defense Chief | News | The Moscow Times [PAR] Nov 16, 1996 ... WASHINGTON -- With U.S. President Bill Clinton narrowing his choices for top 
national security posts, retiring Republican Senator William Cohen of Maine 
emerged ... Clinton has promised to try to put a Republican in his Cabinet.