That's definitely not the case, in fact, she seems proud of her work. And she's absolutely hysterical in that role, so she should be.
Voted one of Barbara Walters "10 Most Fascinating People of 2008," Tina told Babs: "I never did feel that we were mean to her. We stuck to a lot of things that she herself had said, and I think there is a very strange double standard because it's a woman portraying another woman. The jokes we used to do about George W. Bush were that he was an idiot. The jokes were aggressive. No one would ever stop and say, 'Oh, that seems kind of mean.' "
Double standard or not, we loved every minute of it.