Mary Lou McDonald TD was elected leader of Sinn Féin in 2018 and is a Teachta Dála for the Dublin Central constituency for over a decade. Following the 2020 election Mary Lou became the first woman to lead the opposition in the Dáil. She has been the Sinn Féin Spokesperson for Public Expenditure and Reform and All-Ireland Spokesperson for Mental Health and Suicide Prevention. Mary Lou was also an MEP for Dublin from 2004 to 2009. Educated in Trinity College, Dublin, the University of Limerick and Dublin City University she studied English Literature, European Integration Studies and Human Resource Management.