Sen. Joe Lieberman (I-CT) is now defending Sen. Norm Coleman (R-MN) from charges that he dropped the ball on Iraq oversight during his tenure as the top Republican on the Permanent Subcommittee on Investigations.
But as far as I can tell, Lieberman has refrained from mounting a parallel defense of Sen. Collins' tenure as chair of the Governmental Affairs Committee.
Of course, Lieberman was basically pleading with Collins to hold Iraq war contracting hearings all the way back in September 2003. And more than three years later--with the situation in Iraq having deteriorated and billions of dollars up in smoke--the junior senator had still taken no action.
So it would be hard for Lieberman to argue, credibly, that he approved of Collins' decision to sit on her hands.
But that hasn't exactly stopped him before.