What is Rui Rio?
{{Infobox officeholder | name = Rui Rio | honorific-suffix = [[Order of Prince Henry|GCIH]] | image = EPP Summit, 22 March 2018 (27083908678) (cropped, Rui Rio).jpg | caption = | office = [[Leader of the Opposition (Portugal)|Leader of the Opposition]] | term_start = 18 February 2018 | term_end = 3 July 2022 | primeminister = [[António Costa]] | predecessor = [[Pedro Passos Coelho]] | successor = [[Luís Montenegro]] | office1 = [[President of the Social Democratic Party (Portugal)|President of the Social Democratic Party]] | term_start1 = 18 February 2018 | term_end1 = 3 July 2022 | predecessor1 = [[Pedro Passos Coelho]] | successor1 = [[Luís Montenegro]] | office3 = [[Member of the Assembly of the Republic (Portugal)|Member of the Assembly of the Republic]] | term_start3 = 25 October 2019 | term_end3 = | term_start4 = 4 November 1991 | term_end4 = 4 April 2002 | constituency4 = [[Porto District|Porto]] | office5 = [[President of the Municipal Chamber|Mayor]] of [[Porto]] | term_start5 = 8 January 2002 | term_end5 = 22 October 2013 | predecessor5 = Nuno Cardoso | successor5 = [[Rui Moreira (politician)|Rui Moreira]] | office6 = [[Secretary-General of the Social Democratic Party (Portugal)|Secretary-General of the Social Democratic Party]] | term_start6 = 29 March 1996 | term_end6 = 20 June 1997 | predecessor6 = Eduardo Azevedo Soares | successor6 = Carlos Horta e Costa | birth_name = Rui Fernando da Silva Rio | birth_date = {{Birth date and age|1957|8|6|df=y}} | birth_place = [[Porto]], [[Portugal]] | party = [[Social Democratic Party (Portugal)|Social Democratic]] | spouse = Lídia Azevedo | children = Marta | education = Colégio Alemão do Porto | alma_mater = [[University of Porto]] | profession = | signature = | website = }} '''