Yes, but it hasn't done them much good. In fact, looking at their declining political fortunes and probable outcome of the forthcoming 2006 elections, they are doing themselves great political harm by opposing everything and everyone whom/that our President wants.
How many of them are still willing to repeat their slanders of Secretary Rice, for instance?!
Oh, I get it: listening to Biden, they are trying to INSINUATE (by closing the hearing) that whatever it is they have could hurt Bolton, right??
Now Biden trying to convince he had the highest of motives when he moved for closed session.
In full-martyr voice Biden says "fine by me", that they dont' go into closed session.