The Ecologist Party (French: Parti écologiste, PÉ), founded as Écologistes !, is a centre-left French political party that holds pro-European views,[2] created in September 2015 by François de Rugy, President of the Europe Ecology – The Greens (EELV) group in the National Assembly and Jean-Vincent Placé, the President of the EELV group in the Senate.
This party was initially created as a reaction to the decision taken by EELV of making alliances with the Left Front. The aim of UDE founders was to create a reformist centre-left party, accepting globalization and market economy, and supporting president François Hollande. The founders of UDE declared they wanted to become a strong ally of the Socialist Party, and attract people from EELV or from the Democratic Movement.[3][4]
Since 2017, the party is part of La Republique en Marche!.