When Hue resigned after his poor score in the 2002 presidential elections, the post of president was removed, leaving Buffet as sole leader of the Party.

As head of the French Communist Party, Buffet speaks regularly on a variety of topics relating to the plight of the working people.

As a member of the French National Parliament, Buffet has begun to recognize the need to organize with the Communist and Socialist parties of other states within the EU.

It constitutes a comment on the aftermath of the referendum on the establishment of further free trade rulings inside the European Union, one which was rejected by the a significant part of the Left.

She remarked: In 2009, she condemned as "irresponsible" and "criminal" statements by Pope Benedict XVI which claimed that condoms promote AIDS, although they in fact help prevent it.

[2] On 28 February 2013, The Commission des affaires culturelles et de l’éducation, of which Buffet is part, voted in favour of an amendment proposed by Martine Faure, and favoured by Yves Durand, Martine Martinel and Buffet among others, that replaced the biological concepts of "sex", with the sociological concepts of "gender" in the national elementary curriculum.