Question: Which French politician served as President of France?

Context paragraphs:
Xavier Bertrand: Xavier Bertrand (] ; born 21 March 1965) is a French politician.  He was Minister of Health from 2005 to 2007 in Dominique de Villepin's government under President Jacques Chirac, then served as Minister of Labour, Social Affairs and Solidarity from 2007 to 2009 and as Minister of Labour, Employment and Health from 2010 to 2012.  He played a leading role in Nicolas Sarkozy's presidential campaign in 2007.

Robert Hue: Robert Hue, in full Robert Georges Auguste Hue (born 19 October 1946), is a French politician who was National Secretary of the French Communist Party (PCF) from 1994 to 2001 and President of the PCF from 2001 to 2002.  He served as a Deputy in the National Assembly of France from 1997 to 2002, and he has served in the Senate of France since 2004.

Pierre Moscovici: Pierre Moscovici (] ; born September 16, 1957) is a French politician currently serving as the European Commissioner for Economic and Financial Affairs, Taxation and Customs.  Previously he served as a senior French politician, as Minister of Finance from 2012 to 2014 and as Minister for European Affairs between 1997 and 2002.

Nicolas Sarkozy: Nicolas Sarkozy, (] ; born Nicolas Paul Stéphane Sarközy de Nagy-Bocsa; 28 January 1955) is a French politician who served as the President of France and ex officio Co-Prince of Andorra from 16 May 2007 until 15 May 2012.

Michel Poniatowski: Michel Poniatowski (16 May 1922 in Paris, France – 16 January 2002 in Opio, France) was a French politician, member of the senior branch of Poland's princely Poniatowski family.  He was a founder of the Independent Republicans and a part of the administration for President Valéry Giscard d'Estaing.  Poniatowski served as Minister of Health from 1973 to 1974 and Minister of the Interior in the d'Estaing government from 1974 to 1977.  He was a founder and honorary president of the Union for French Democracy (Union pour la Démocratie Française, UDF).

Alain Carignon: Alain Carignon, born on February 23, 1949, in Vizille (Isère), is a conservative French politician.  Mayor of Grenoble from 1983 to 1995, he became junior minister in charge of environmental issues in the second Chirac government; in 1986 he proposed legislation against major radioactive risks.  He then became minister in charge of media and telecommunication in the Balladur government., but had to resign from that position when his indictment for corruption became inevitable.  He was later sentenced to a 4 years jail term, of which he served 29 months, the longest ever for a French politician convicted of corruption.

John Lewis (Arizona politician): John Lewis (born October 3, 1957) is an American politician served as the mayor of Gilbert, Arizona from 2009 to 2016 when he resigned his post to become president and CEO of East Valley Partnership.  Lewis is a member of the Republican Party.

Philippe Le Royer: Philippe Le Royer (June 27, 1826 – February 22, 1897) was a French politician of the French Third Republic.  He was born in Geneva, Switzerland to French parents.  He was a member of the National Assembly of 1871.  He served in the Senate of France from 1875 until his death and was its president (1882–1893).  He served as minister of justice (1878–1879) in the Government of France under Prime Minister William Henry Waddington.  He died in Paris.

François Hollande: François Gérard Georges Nicolas Hollande, (] ; born 12 August 1954) is a French politician who was the President of France and ex officio Co-Prince of Andorra from 2012 to 2017.  Hollande was previously the First Secretary of the French Socialist Party from 1997 to 2008, the mayor of Tulle from 2001 to 2008, and the President of the Corrèze General Council from 2008 to 2012.  Hollande also served in the National Assembly of France twice for the department of Corrèze's 1st Constituency from 1988 to 1993, and again from 1997 to 2012.

Joseph Claussat: Joseph Claussat (1874-1925) was a French politician.  He served as the mayor of Châteldon.  He also served as a member of the Chamber of Deputies from 1911 to 1925, representing Puy-de-Dôme.  His daughter Marguerite Claussat (1888-1959) married the French politician Pierre Laval, both of whom were born and raised in Châteldon.

Supporting paragraphs: Xavier Bertrand Nicolas Sarkozy
Answer: Nicolas Sarkozy