To withdraw means to have been asked to pack it in. In D.C. it is a way of falling on your sword without drawing blood. You don't tell any President of the U.S. that you won't step down. Not only is it bad form but it costs you for the rest of your career.
Harriett was booted, pure, plain and simple.
And you jacklegs have to continue to revel in it, over and over and over and over and over.
Bush gets rid of her, and some of the unappeaseables STILL hold it against him.