Academic Since 2006, Castellone has been a researcher at the Institute of Endocrinology and Experimental Oncology of the
National Research Council. The first vote ended in a 36–36 tie, following a disputed ballot. After internal negotiations by Conte, Licheri stepped back, and Castellone was confirmed as leader on 5 November 2021. She became the first female group leader of the Five Star Movement in the Senate. == References ==