Lutte Ouvrière  Workers' Struggle ( ) is the name by which the French Trotskyist political party Communist Union () is usually known, after the name of its weekly paper. Arlette Laguiller has been its spokeswoman since 1973 and ran in each presidential election until 2012, when Nathalie Arthaud was the candidate. Robert Barcia (Hardy) was its founder and central leader. Lutte Ouvrière is a member of the Internationalist Communist Union. It emphasises workplace activity and has been critical of such recent phenomena as alter-globalization. Its origins lie in the tiny Trotskyist Group founded in 1939 by David Korner (Barta). This developed factory work throughout the war and was instrumental in the Renault strike of 1947, along with the anarcho-syndicalists. The group was exhausted by this effort and collapsed in 1952. After attempts to revive the Trotskyist Group, Voix Ouvrière was founded in 1956 by Robert Barcia, known as Hardy and the group's pre-eminent leader, and by Pierre Bois, a leading activist in the Renault plant. Effort was made to involve Barta but disputes between him, Hardy and Bois prevented it. VO established itself through the 1960s by producing mass factory bulletins, usually weekly. The Communist Party of France (PCF) retained its hegemonic position within the workers' movement in France and its members sometimes tried to prevent the distribution of VO bulletins. In part this explains the continued use of semi-clandestine operation within VO and in LO today. After being banned due to its support of the Students Revolt of May '68, the group became Lutte Ouvrière. An ongoing issue is the possibility and conditions of cooperation with fellow Trotskyist party the Ligue Communiste Révolutionnaire, the French section of the Fourth International. In 1970, LO initiated fusion discussions with the LC (as the LCR was then called). After extensive discussions, the two organisations had agreed the basis for a fused organisation. However, the fusion was not completed. In 1976 discussions between the Ligue and Lutte Ouvrière progressed again. The two organisations started to produce a common weekly supplement to their newspapers, common electoral work and other common campaigning. Since then on occasions the two organizations have stood joint candidates at some elections. LO has made great efforts to stand in elections either on its own or in an alliance with the LCR. Arlette Laguiller has, as a result, become well known to the public as LO's perennial Presidential candidate.