When I heard this on the radio yesterday, I couldn’t believe that Carville actually said it, so I went looking for verification.
“Of the comparable toughness between Sens. Hillary Clinton, D-N.Y., and Barack Obama, D-Ill., Clinton adviser James Carville tells Newsweek: ‘If she gave him one of her cojones, they’d both have two.’”
http://blogs.abcnews.com/politicalpunch/2008/05/carville-says-o.html