Colbert asks her to account for her current camaraderie with Biden in light of the savaging she administered to him during the debates. She treats the question as a joke, and immediately begins laughing hysterically. Indeed, she's laughing too hard throughout the entire exchange in order to minimize the question and to deflect from having to answer; and, yes, the only thing she keeps repeating is: "it was a debate!" without ever answering the question. She's a deceitful POS.