What is Mary Lou McDonald?
{{Infobox officeholder | name = Mary Lou McDonald | honorific-suffix = [[Teachta Dála|TD]] | image = Mary Lou McDonald, 2018.jpg | caption =Mary Lou McDonald in 2018 | office = [[Leader of the Opposition (Ireland)|Leader of the Opposition]] | president = [[Michael D. Higgins]] | termstart = 27 June 2020 | taoiseach = [[Micheál Martin]]<br>[[Leo Varadkar]] | preceded = [[Micheál Martin]] | office1 = [[President of Sinn Féin]] | vicepresident1 = [[Michelle O'Neill]] | term_start1 = 10 February 2018 | term_end1 = | predecessor1 = [[Gerry Adams]] | successor1 = | office5 = [[Leader of Sinn Féin#Vice Presidents|Vice President of Sinn Féin]] | president5 = Gerry Adams | term_start5 = 22 February 2009 | term_end5 = 10 February 2018 | predecessor5 = [[Pat Doherty]] | successor5 = Michelle O'Neill | office2 = [[Teachta Dála]] | term_start2 = [[2011 Irish general election|February 2011]] | term_end2 = | constituency2 = [[Dublin Central (Dáil constituency)|Dublin Central]] | office3 = [[Member of the European Parliament]] | term_start3 = 1 July 2004 | term_end3 = 20 June 2009 | constituency3 = [[Dublin (European Parliament constituency)|Dublin]] | birth_name = Mary Louise McDonald | birth_date = {{birth date and age|1969|5|1|df=y}} | birth_place = [[Churchtown, Dublin]], Ireland | death_date = | death_place = | nationality = [[Irish people|Irish]] | party = [[Sinn Féin]] | spouse = {{marriage|Martin Lanigan|1996}} | children = 2 | alma_mater = {{Ubl|[[Trinity College Dublin]]|[[University of Limerick]]|[[Dublin City University]]}} | website = {{url|dublincentralsinnfein.ie|Official website}} |}} '''Mary Louise McDonald''' (born 1 May 1969) is an Irish [[Sinn Féin]] politician. In June 2020, she became [[Leader of the Opposition (Ireland)|Leader of the Opposition]]. She is the [[Leader of Sinn Féin]] since February 2018 and [[Teachta Dála]] (TD) for [[Dublin Central (Dái