Carrie Preston has played the quirky lawyer-turned-detective Elsbeth Tascioni in three popular series: "The Good Wife," "The Good Fight," and now in the comedic murder-mystery series @Elsbeth, in which she helps New York City police solve crimes through unconventional means. Preston talks with correspondent Mo Rocca about how playing a paragon of positivity is like a miracle for her. #elsbeth #cbs #tv #carriepreston