Regardless of how much some Democrats want him to go away, this guy fits his label.
He said himself that there is no single issue that he agrees with the Democrats on. He obviously doesn't have any party loyalty, since he's speaking at the other party, so why does he stay on? I say for all the attention he gets by being the leading Democrat for Bush.
I can answer that. Remember hsi excellent line abotu family being more important than party? His family has been democrat for hsi entire lifetime, and he is not about to change that.
Welcome to the wonderful world of Dixiecrats.