On 2 February 2011, he was elected Archbishop of Dublin and Bishop of Glendalough, and enthroned at Christ Church Cathedral, Dublin on 8 May 2011, succeeding John Neill. Jackson has caused several controversies during his incumbency in Dublin, including a media fracas regarding comments about sectarianism made in a speech during the 2013 diocesan synod There was also controversy over the closure of the 200 year old Church of Ireland College of Education and its amalgamation into Dublin City University, ending the historic link with Trinity College, Dublin