The Queen of Nice turned nasty during her one-year stint on the buzzy morning gabfest — at least when she was dealing with co-host Elisabeth Hasselbeck. The clashes between the pair — most common during political discussions — were the stuff of legend, all leading up to their final, cable-news-style, split-screen smackdown on May 25, 2007. O'Donnell never returned to the show after that day, later saying in a video on her website: ''When I saw the split screen, that's when I knew it was over.''