There is not a chance in hell that Democratic leadership accepts MTG as a “reformed Dem,” unless she fully recants all of her beliefs and undergoes a wholesale political and philosophical conversion and issues a groveling apology for her past behavior, i.e. becomes an entirely different person. As there is zero possibility of that, the door is closed to her. I have previously explained my opinion about the primary sin between the Right and the Left — namely, weakness and hypocrisy respectively (or, put another way: the Right demands purity of action while the Left polices purity of thought). The GOP will welcome any loyal soldier with an R after his or her name, past sins be damned, in the name of power. On the Dem side, by contrast, leadership knows they would be crucified even for floating the prospect of an idea in this direction, because her loyalty would not be seen as sincere. Even in the wildly implausible world where she offers to switch, she would be swiftly and decisively refused.