Between March 1999 and December 2000, Cristian Preda was the presidential adviser for domestic policies of the Romanian President Emil Constantinescu. In October 2001 Cristian Preda became a project manager of the branches of the Central and Eastern Europe Office of the Francophony University Agency. From 2002, he is a member of regional commission of experts for this organisation. On September 21, 2005 he was assigned junior ministry for Francophonie in the Romanian Foreign Ministry and personal representative of the Romanian President Traian Băsescu. In this quality, he took an important part in preparation of the Francophonie Summit in Bucharest, in September 2006. On March 15, 2007 Cristian Preda became presidential adviser for education and research and continued to be the personal representative for Francophonie for President Traian Băsescu. At the beginning of 2009, Cristian Preda decided to become a member of the Romanian Liberal Democratic Party. He was nominated on the 4th position in the list of Liberal Democratic Party for the European Parliament elections on June 7, 2009. He was elected for a 5 years mandate and became a member in the Foreign Affairs Committee of the European Parliament. In June, 2012, Cristian Preda became a prime-vice president of the Liberal Democratic Party. In 2014 Preda joined the People's Movement Party founded by Traian Băsescu and was re-elected to the European Parliament. He is the spokesman of the European People's Party Group on foreign affairs and First Vice-Chair of the Subcommittee on Human Rights.
Publishing
Cristian Preda is the author of several volumes on: The evolution of the Romanian political thought:
Modernitatea politică şi românismul, Nemira, 1998;
Occidentul nostru, Nemira, 1999;
Staulul şi sirena. Dilemele unui marxist român, Nemira, 2002;
Contribuţii la istoria intelectuală a politicii româneşti, Meridiane, 2003;
The history of liberalism:
Le libéralisme du désespoir. Tradition libérale et critique du totalitarisme dans les années 1938-1960, University of Bucharest, 2000;
România postcomunistă şi România interbelică, Meridiane, 2002;
Partide şi alegeri în România postcomunistă, Nemira, 2005;
Regimul, partidele şi sistemul politic din România.
Cristian Preda authored or coauthored over 60 scientific studies and articles in collective volumes and Romanian and foreign political science journals. He was also a regular contributor to the 22, Dilema, Observator cultural magazines. In parallel, he worked as a translator for Humanitas, Babel, Anastasia, Meridiane and Nemira publishing houses. He is the coordinator of political sciences collections: Societatea politică, Polis and Biblioteca de politică. He was a writer at Sfera Politicii and Polis. Cristian Preda is an editor of Romanian political sciences journal Studia Politica.