|President||François de Rugy|
|President in the National Assembly||Gilles Le Gendre|
|Founder||François de Rugy|
|Founded||2 September 2015|
|Split from||Europe Ecology – The Greens|
|National affiliation||Union of Democrats and Ecologists (until Jul 2016)|
|European Parliament group||None|
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The Ecologist Party (French: Parti écologiste, PÉ), founded as Écologistes !, is a centre-left French political party 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.
- (in French) Écologistes ! (centre gauche) (scission de EELV en 2015)) (fondé en 2010)
- (in French) 
- (in French)